Invest Like the Best with Patrick O'Shaughnessy - Jeff Ma – Making Decisions with Data - [Invest Like the Best, EP.151]
Episode Date: December 10, 2019My guest this week is Jeff Ma. Jeff was on the famous MIT Blackjack team from the book Bringing Down the House but has spent his career in an around fields of analytics and data science. He’s studie...d sports betting and analytics, built companies for analyzing human capital, and ran the data science and analytics group at Twitter. Here are links to his book, blog, and podcast. Our discussion is about a number of fascinating ways data is being used to make decisions in the worlds of sports and business. Please enjoy! For more episodes go to InvestorFieldGuide.com/podcast. Sign up for the book club, where you’ll get a full investor curriculum and then 3-4 suggestions every month at InvestorFieldGuide.com/bookclub. Follow Patrick on Twitter at @patrick_oshag Show Notes 1:20 - (First Question) – How quantitative analytics have evolved in sports and how they’re being used 4:26 – Best role of humans in the analysis process 8:38 – Sports that are most interesting to observe through analytics 10:26 – How does luck play into sports analysis 11:54 – Team analytics vs better analytics 12:38 – Concentration of success among sports betters and their moats 14:58 – Favorite lessons learned from professional gamblers 16:45 – How analytics got introduced into gambling 19:21 – Understanding one’s own biases 24:04 – How he became VP of analytics at Twitter 28:37 – Primary lessons from the work evaluating human capital and talent with analytics 28:59 – Niel Roberson Podcast Episode 31:40 – How to model people for success when hiring 33:29 – How to hire the right data scientists’ team 37:54 – Most interesting problems they tackled at twitter 42:31 – Responsibility of social platforms to police itself 45:34 – Areas that would interest him in the future as an investor 49:24 – Kindest thing anyone has done for Jeff 51:50 – Values instilled in him by his parents. Learn More For more episodes go to InvestorFieldGuide.com/podcast. Sign up for the book club, where you’ll get a full investor curriculum and then 3-4 suggestions every month at InvestorFieldGuide.com/bookclub Follow Patrick on twitter at @patrick_oshag
Transcript
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Hello and welcome, everyone. I'm Patrick O'Shaughnessy, and this is Invest like the Best.
This show is an open-ended exploration of markets, ideas, methods, stories, and of strategies that
will help you better invest both your time and your money. You can learn more and stay up to date
at investorfield guide.com.
Patrick O'Shaughnessy is the CEO of O'Shaughnessy Asset Management. All opinions expressed by
Patrick and podcast guests are solely their own opinions and do not reflect the opinion of
O'Shaughnessy asset management. This podcast is for informational purposes only and should not be
relied upon as a basis for investment decisions. Clients of O'Shaughnessy asset management may
maintain positions and the securities discussed in this podcast. My guest this week is Jeff Ma. Jeff
was on the famous MIT blackjack team from the book Bringing Down the House, but spent his career
in and around the fields of analytics and data science. He studied sports betting and analytics,
built companies for analyzing human capital, and ran the data science and analytics group at Twitter.
You can find links to his book and podcasts in the show notes.
Our discussion today is on a number of fascinating ways that data is being used to make decisions in the worlds of sports and in business.
Please enjoy.
So like a Billy Bean money ball type story or from a moneymaking standpoint, the horse racing in Hong Kong type story,
typically always comes back to kind of quantitative analytics.
So tell me a bit about how you think the state of the art is today.
A lot of people will know Moneyball, but what has evolved the most?
How have analytics and the sophistication of the users of those?
types of systems evolved? I would say at the sports level, not the sports betting level, but the
sports level, like the Billy Bean level, the way that it's evolved the most is just acceptance.
People believe in this. So in basketball, there are analytical strategies that you see on the court.
I don't know if you know, but three is worth more than two. So teams that shoot more three
pointers, they're more analytically driven, especially certain three pointers, the corner three,
which is much closer. It's closer than the rest of the three. So people shoot it at a higher percentage.
that's why you see so many people trying to shoot corner threes and you see the best defensive teams
trying to take away the corner three because it's a highly efficient shot.
And across sports, I would say there is much more of an acceptance that you need some form
of analytics to basically compete now, both from a player personnel standpoint and then an on-field
strategy standpoint.
I think the more interesting thing or the evolution as sports is going forward is going to be
around data.
And that's sort of like the classic analytics paradigm.
which is that you can't have any strong analytical system unless you have good data.
For a long time, sports data has been pretty bad. Generally, the data that's captured is the
data that's easy to capture. It's the data that describes what's happening in the game. It's not
what is ultimately the best thing to build out a analytical system to predict what's going on.
With things like player tracking and with computer vision and all these different types of things,
we're getting much better data to understand how to predict games, specifically in baseball.
Originally, you would have very, very, very old data that wasn't useful.
But now they literally have cameras that are capturing launch angle and spin rates of the ball
and velocity and exit velocity of a hit that allows you to build better bottoms up models
to predict what would happen in a game.
Because think about baseball.
If all you capture is there was a pitch and then there was a single,
A single could be a ground ball that just happened to find a hole, or it could be a rocket that just landed short of in Fenway Park.
It could be a rocket that hits off the wall and should have been a home run at any other ballpark, but someone basically hit it right directly into the wall and the defender made a great play.
Do you think a fair way to describe this would be more of a focus on the quality of the process of a given action versus the outcome of that action, like the quality of a shot versus whether or not a winner?
For sure.
I mean, that's definitely a good way to look at it.
The challenge with that, both the value and the challenge with that is that you're talking about
almost having somewhat of a qualitative judgment. And so I think that's an interesting thing that
sports is going towards, which is this idea of, and you see it in machine learning or anything,
human evaluation. How do you actually get humans to help interpret data at scale that helps
you create a better data set to use to trade models and things like that? Again, on the sports team
level, what do you think is the best role of talented humans right now in the process? So it's not,
I don't think any major league teams are operating purely on a model for selection. There's still
humans involved. So what are the best humans getting better at or focusing on? I think the first wave
was always player personnel. It's like how do we make our player personnel decisions? And specifically
a sport like football where you see a team like the 49ers becoming very aggressive and different in terms of how
they do contracts and things like that. So that's sort of an inefficiency, which is to understand
can you structure contracts in a way that are better for the team in terms of guaranteed money,
in terms of how it hits the cap, in terms of all those things. So that's, I think, an area of
huge opportunity or gain. I think that generally on-field strategies in places like football
and understanding game theory around run-pass mix, around play calling, that's a huge area for
opportunity to understand. Like the key to analytics,
And so when we were working on pro trade, the sports company, Bill Walsh was an investor.
And Bill Walsh was a sort of legendary coach for the 49ers, won four Super Bowls, and Pioneer.
And I sat down with him in his office.
And I remember I was specifically, we were trying to build out a model to evaluate the process, to evaluate plays.
A six-yard run means success on first down, but a six-yard run on third and 20 is not successful.
or second and 12 or something like that is probably not successful.
So you have to evaluate on any given play, how many yards do I need to make it successful?
And so we had done some numbers, basically looking at building a model of all the different plays
and what yardage gains would actually put you in a better position in terms of winning.
So that's how we evaluated it.
And what we found was that it was for first and 10, it was something like a little over four yards,
so four and a half yards was meant success.
And so I just sat down and asked Bill Walsh and you guys here, here, I got.
got my Excel spreadsheet out and all this kind of stuff.
I'm like Coach Walsh, on first and 10, what do you, he goes, oh, probably a little over four-yard.
Like he thought for a minute and they said a little over four yards.
He's never looked at a spreadsheet or anything, but he completely had it all in his mind.
And I met with the Jerry West at the same time.
And Jerry West, the first thing he said to me is, boy, I flew to Memphis to sit with him.
And he said, boy, I got one thing to tell you first.
And I said, boy, he goes, I hate statistics.
And I was like, oh, okay, this would be great.
This would be a great time to hang out in Memphis.
But what he meant was that he hated the way people.
people use statistics in basketball. And he even said it. He said, I hate that people think
Alan Iverson is a great basketball player, even though he needs 35 shots to score 30 points.
He hated the way. And so it was clear that there is in these geniuses, and I'm sure you guys
see this in minus world, there are geniuses that don't need models that just somehow have this
inane ability to sort of look at situations and then extract value from them. But the rest of
us need models. The rest of us need data. And so the key is almost unlocking what's in their
mind via data and analytics. Yeah. I'm always interested in these analytics challenges what the target or
outcome variables are. So oftentimes when you see really creative data science predictive modeling
projects, it's creative because they've chosen a unique thing that they're modeling. So they're not
just modeling a run. They're modeling something more specific in baseball or what have you.
Do you see much of that happening in sports analytics where we're trying to predict more unique in
different things than the obvious things? At the core, what you're talking about is people would say,
oh, how do you predict wins? But what are the real? And it's always scoring. So scoring at some level is.
And then what are the things that really are the most predictive for scoring? And I guess I'll go back
to baseball again, because there's this concept even in baseball, if you do a bottoms up model,
meaning trying to predict hits or trying to predict each at bat, even if you have, let's say,
three hits in a row in one inning, and then no hits in the next two,
versus three hits in one inning.
It's just this idea of cluster luck is what they call it.
And so I think what I would say is that there continues to be really great opportunities
to evaluate sports as you break down what you're saying, trying to change outcome variables.
What are maybe a quick survey of the sports that are most interesting to you
through the analytics lens of the major sports, maybe from most to least?
So baseball is the most interesting.
They're all interesting in different ways.
So baseball is very interesting because at the core, it's very solved.
And because it's very solved, they've had to go to like very new ways, i.e., this data that I'm talking about.
They've had to kind of reinvent themselves and go to the data.
Basketball is interesting because it's the one that's probably getting the most attention now because of guys like Darry and because of just the general trend of what's happening in these front offices and the corner three.
and it's just fundamentally, analytics, I think, have fundamentally changed the game the most in basketball.
Like, it looks fundamentally different now than it looked even five years ago and how different it looked now.
Teams play faster, teams try to shoot more threes, teams understand they need to drive more, the mid-range.
That is all analytics driven.
I think football is probably, I would say, singly the most interesting simply because it's the one where there's the most green space to go out and figure this out.
because so much of what happens on field is just not really well understood.
And even something like the modern day concept of not punting or never punting or never kicking
field goals, you still see teams that are very smart or anally driven, even the Patriots.
You see them kick field goals in situations where all the math and all the analytics would tell
you that it's a terrible decision to do so, but you still see them.
Anytime you kick a field goal inside of five yards, so any field goal that's less than, say,
22 yards is probably a really bad idea, almost instant.
side of 10 yards is probably a really bad idea because not only you giving up the ball,
but you're going to end up giving up field position and you give up the opportunity to score
seven points versus three points. What about sports like, I always picture that luck skill
continuum where the more players and certain other attributes, the more luck helps determine the
outcome of a game. So like football and soccer would be higher on luck versus tennis and golf where
pretty much the best person wins. Luck is a smaller piece of it. So what about that end of the
spectrum, sort of this individual sports. Yeah, well, you brought up soccer, which is interesting because
soccer, soccer and hockey are very interesting because of how little scoring there is. And so,
therefore, there isn't a lot of, you would think soccer is probably a perfect example of what you're
saying, where you want to actually come up with how to predict something beyond scoring. You want to
predict scoring chances or score that kind of thing. And there's actually a guy that's a good friend of
my name Ted Knutson who started a company called Statsbomb that is actually really going back and
training people to go back and watch games and create new data from watching games that
allows them to do these things, model out more predictive things. In terms of individual sports,
my partner on the podcast that I do about the process, Rufus Peabody, he's one of the, if not
the number one, golf better in the world. He's one of the top. And he definitely is for a long
time with sort of looking at data that most people weren't looking at. That market has become
much more efficient now, unfortunately for him. But modeling out individual performance,
Yeah, I would say that there's definitely a level of it that's easier because there aren't as many sort of confounding factors or composite things that happen.
But I think even in golf, it has its challenges because courses are different and everything like that.
Talk about the differences between how teams use data and analytics versus professional gamblers.
So it sounds like for teams, it's mostly strategy on the court, player personnel decisions and maybe personnel development.
Obviously, that's not what betterers care about.
They care about outcomes of the game versus spreads or whatever.
What is different in terms of the two analytics section?
Yeah, I just think exactly what you said.
It's the sort of motivation.
I think that a better would not care about.
There was a lot of similarities, I guess,
because ultimately you're trying to predict winning.
I think there are many times where there'll be very aligned,
but there's also times where a better is much more mercenary
and how they're thinking about things.
Yeah, I guess teams also have to think a lot more holistically
about the entire season and what they're trying to do,
whereas betters are often just trying to think about one individual game.
How concentrated do you think the,
betting markets are in terms of who's making the profits.
So I've talked to some people in the sports betting world that would say in any given sport,
it's usually one or a small handful that basically take 100 plus percent of the profits because
there's a lot of dumb money in sports gambling.
Do you think that's rough and fair?
It's very true.
I would say the amount of people that can consistently beat the market, i.e.
become professional sports betters, is very small.
I mean, it's in the neighborhood of 1% of the people that bet, maybe even less.
And how much of a moat do those beters tend to have around?
their edge versus the competition. How much turnover is there in that 1%? I think it's hard to answer
that simply because it's changing so much. I think I would have said to you, I don't think there's
much of a moat, to be honest. And I think one of the reasons that there isn't much of a mode is because
the top bettors are constantly changing what they're doing. They're not doing the same thing over
and over again. And it's not like they've established something. They're constantly having to
reevaluate. I was talking to someone the other day about the MBA. And I was saying people that bet the NBA
with these sort of static models right now are crazy to me because the game is changing so much
every year because of analytics, because of rules, because of everything that's happening,
even just because of the way the schedules change.
The schedule has changed a lot because they're trying to give players more rest.
And even with that, players are getting more rest naturally.
They're also sitting them out of games much more than they used to.
So if you're building a model based on historical data that takes into account when someone's
rested and when someone's not, it's not going to work.
anymore because it's just very different in terms of how they do things.
And do you think that basically 100% of the 1% let's call them are quants are using analytics
and data science? I wouldn't say that. Some of them play the market. And if you call that a quant,
i.e. they understand market moves. And there are, if you bet into the black market or into the
legal markets, there can be big opportunities for pricing disparities. So there are some people
that do that, and I wouldn't necessarily call them quants, there are definitely a handful of people
that can sort of read those market moves or can look for things like that that do well over time.
It's basically just arbitrage at some level. But I would say the people that originate
that sort of are fundamental versus technical, they're sort of always going to be analytically driven
or create models because it's just too hard not to be. Do you have any favorite encounters or
lessons learned from other professional gamblers across your set of interests? I mean, I think
a lot of it is just around understanding how to overcome biases. And so this is something you and I
talked about a lot. And the biases around loss aversion or short-term thinking or even just the idea
of process over results and being driven that way, I think whenever you see a really strong sports
better, you're never like, oh, wow, he's the most strong analytical person I've ever seen or I'd want to
hire. You just see this fortitude and this ability to sort of go.
and overcome these big swings.
Because if you're a really successful sports better,
you've had some really bad swings also
where you've had to really doubt yourself
and doubt everything that you've done
and doubt your process
and you have to have been able to get through that
to become successful.
So I'd say that that's probably the consistent thing that I see.
And then, yeah, I mean, I think the other thing,
and this is one of those things that
when I think about my early background
sort of in Blackjack and card counting,
you never had to question your model
and you never had to question stationarity in the data.
But in sports betting, you consistently have to.
If you don't, you're a fool.
And so with that, there's just more inherent doubt that is cast on you that you've got to overcome.
In Blackjack, you have a bad out, you have a bad session, and you feel pretty good
the next time you're going to get them.
It's okay.
And sports, when you go through one of these bad streaks, you worry.
It's the exact same thing in public stock markets.
It's everything is evolving, change.
changing, regulations change, rules change, players change, the competition changes. So it sounds identical,
very non-stationary type outcomes. It's fascinating. In the early days, let's talk a little bit about that.
So at MIT, maybe tell me the backstory for how this idea first came together. People know the
movie 21 and the book, Ben Mesrick's book. So the premise behind the Blackjack stuff was relatively
simple. I mean, MIT has always sort of had this cultish type group that figured out,
Blackjack, all the way back to Ed Thorpe, who was, I think, either a visiting professor or whatnot at MIT.
And he actually discovered card counting on an old school IBM mainframe computer where he did
simulations, where he understood that if you took all twos out of a deck of cards,
what would that mean in terms of win probability?
So he would do simulations.
And essentially, the concept of card counting is not new.
Blackjack is the only game in the casino that's subject to conditional probability,
meaning what you see impacts what you're going to see.
And therefore, it's like this perfect thing for data-driven thinking
or data-driven strategies.
So the MIT Blackjack team, my involvement essentially was there were these guys
that had been card counters but no longer could play because the casinos had banned them
and they were recruiting new people to play and they would basically teach you how to play
and then send you to Vegas and give you some money and you'd win money and you basically split it
with them.
We had a group that played and we were quite successful.
And when it was all over, I approached Ben, Mesrick, I think it was in 2001.
And Ben had written six books at that time, but his career was definitely at a crossroads.
He had business school applications out and was contemplating not being a writer anymore.
And I said, hey, Ben, I got a really great idea for your next book.
And again, remember, this is 2001.
So the World Series of Poker isn't even on television yet.
I don't even know if big data is a term at this time.
And it was just a really interesting moment in time.
This is even before Moneyball.
So this is like an interesting moment in time where,
we told this analytic story. So Michael Lewis is a friend of mine, and I talk a lot about the
blind side being sort of like this amazing nature versus nurture book that was written right
around the same time that Gladwell wrote outliers and talent is overrated were written. And those
were all these very prescriptive nature versus nurture books. But blindside was sort of to me,
the most important one because it was this nature versus nurture story that told it in just this
incredibly fascinating and accessible way. In many ways, that was luckily what bringing down the
house, the book that Ben wrote in 21, the story did is it told sort of this analytic story
in a very non-prescriptive way and gave sort of this opening for people to think or talk about
gambling and card counting in an analytical way. One of the things I've seen you talk about
as the maybe most interesting takeaway from that experience is understanding one's own biases.
and with Blackjack as one presentation, there's like a card that shows how, I can't remember what it's called,
like a perfect strategy or something like that.
Yeah, basic strategy.
Basic strategy.
It tells you exactly what you should do odds-wise on every hand.
And that a lot of people know this, but still then don't follow it.
So maybe talk a little bit about your experience with bias.
So that's a very simple example and a very good example.
Essentially, the game of Blackjack has been solved.
You know, given what hand you have and what the dealer has is an up card, you know what to do.
And you can look at this card.
And this card's not secret. It's available on the internet and it's available in books and whatnot.
And if you just do that, if you just go from blind intuition to all of a sudden just following this
matrix, decision matrix, you go from losing roughly about 3% of the money you put on the table to
about half a percent of the money. So you almost become an even player against the casino.
Yet you will find people all the time that no basic strategy, but then when given a situation,
will decide to go with their gut over what the data says.
And it highlights a lot of biases that we have.
One that I talk about a lot is this concept of omission bias
where people favor inaction over action when they think it may lead to their own harm,
meaning I'd rather you do something that causes my demise than me cause my own demise.
And so the classic example is if I have 15 and the dealer has a nine showing,
the math 100% will tell me to hit.
Because if they have 19, that's a winning hand.
they're not going to have to do anything. And there's a good chance they have 19. And if I have 15,
I'm not going to win unless they bust. So I need to take a card. But a lot of people won't want to
take a card there because if they get a seven and eight, a nine, a 10, a Jack, a Queen of King,
they're going to lose right away. So they'd rather just say, okay, well, I don't want to be the cause of
my own demise. And so they basically decide not to hit in that situation and hope that the dealer
flips a low card and has to take a card and bust. But if the dealer flips a 10 and wins, well, at least
in that case, they were probably going to lose anyways. That's what they're thinking in their mind,
and they weren't the cause of their own demise. And then you also see these sort of ideas of, and I don't know
what this bias is, but I always joke that one of the most dangerous human beings in the world is Malcolm
Gladwell, because he's such a great writer, but he can take these concepts that aren't always
completely true. And because he's such a great writer can make us believe that they're true.
And the notion of blinking and intuition over data that it's largely not true. There are some people out there
that probably don't need data because they've had such pattern recognition in their lives.
But even that, people don't understand. That's their own data that they have in their mind and
their own models in their mind. But again, the idea, if you decide to just use blind intuition at
Blackjack and I use data, I'm going to do better than you over the long haul. And then another is
classic results bias or whatever process of a result where if tonight, if you and I decide,
hey, let's go to Atlantic City. And I don't know why we'd want to do that. But if we said that,
there's 15 versus 9, I'm standing behind you.
and say, Jeff, what am I supposed to do in this situation?
If I say, you're supposed to hit.
If you get six to make 21, you're going to turn around and high five me or be best
friends forever.
If you get seven to make 22 and lose, you're going to turn around and go, they should never
made a movie or a book about you.
But that's the classic, the decision.
I was watching Monday football last night, and there was a fourth down that one of the
coaches went for.
And when he got it, I think Chris Collinsworth said something like, again, with a great
decision.
No, the decision was independent of the results.
So I think these are some of the classic biases.
Yeah, in betting and markets and edge, these things won't go away.
They're human nature.
And the question is, can enough smart participants overcome their bias and sort of eke
out that edge that does exist?
I think you could argue, and people like Michael Mobeson have argued in public stock markets
that the dumb money, so to speak, has sort of been pushed out.
And they're just opted out of the game.
They buy index funds instead of trying to beat the market.
But in gambling, which is a much more recreational, it seems like the
runway could be much longer. No index fund of gambling. Yeah, I mean, the challenge is the liquidity
and the challenge is being able to actually deploy capital because even though there's a lot of
dumb money there, there's no incentive for the market makers to allow smart money. The really good
market makers, in this case, market makers are just the sports book operators, but the real
sophisticated ones are trying to use the smart money to inform how they do pricing to try to increase
their edge over the dumb money. But most of people aren't thinking.
about it like that. Most of people are thinking recreationally, how do I make the most money off
of people that don't know how to bet? And then I can make a higher margin that I would if I let
smart money in. Tell me the story of how you ended up as the VP of analytics and data science
at Twitter. I had started a company that was in the world of analytics for people. So for
human performance, specifically in this case, we were looking at the performance of software
engineers. How do you evaluate their performance, then how do you create sort of enterprise tools
to better manage them or better understand them or better motivate them? And pretty early on,
we realized that this was an enterprise play. Like, we were going to have to sell into big companies.
And I don't think any of us really had that in our DNA. And so Twitter had just started an engineering
effectiveness team. And they were going to try to do a lot of the same things that we were already
doing. So they decided to buy us and let us build a tool.
at Twitter. And we took the opportunity to join Twitter in a lot of ways because we were all fascinated
by the company Twitter at that time. And personally, I've been a part of a few startups that have
had success and we've sold to bigger companies. And this was the only time that I was really
excited to join the acquiring company. And so originally when I went in there, actually,
it was funny because the original thought was that I was going to go in and build a sports only
app. So it was a vertical app and it was an idea of can they have a multiple app strategy,
especially on the consumption side. And literally a day before the deal was going to close,
Kevin Wheel, who was the VP of product at the time, called me and he said, hey, Jeff, we've decided
we don't really want to do this vertical strategy anymore. Do you still want to join? And we
had literally been coming to the office playing FIFA soccer all day because we knew that whatever
we had done, we weren't going to continue building. We're going to build everything within Twitter.
Twitter. So at that point, the idea of restarting and killing this deal, it wasn't going to happen.
So I said, yeah, I'll join. And originally I was part of running a lot of product within the
growth team. So using analytics to understand user growth and to understand how to grow more.
But then Anthony Noto, who is now the CEO of SOFi and at that time was the CFO of Twitter,
he had started a small group of data scientists and really economists that were trying to look very much
the macro type analytics at Twitter to understand user growth and to report for IR and all that kind of
stuff. And he asked me to come run this team. What's interesting is the guy that originally was
running the team now runs analytics and data science at Stripe. It's like this amazing group of
people that I was allowed to sort of be around. And I didn't have a real traditional background
to lead sort of a data science analytics team. If you look at me right now, compared to most of the
people in the Valley that are doing this, most of people in Valley are PhDs at some level and are much
more academics. And I had come from this completely different background to do this. And the team that
they asked me to lead at that time was small, but it was immensely talented and to be able to work
with those types of people and understand Twitter is this incredible, almost like a playground to do
analytics. And you have this community of 300 some million people that are interacting in ways
that people don't even ever understand. There's one country, I think it's in maybe in one of the stands,
Kazakhstan or something like that, where they actually use Twitter like they would Uber,
because Uber's not allowed there. So someone will tweet out that they're at a certain place
and someone will come pick them up or something like that. And just that they use cases around Twitter
are really incredible. And so to be able to be a part of that. And so Anthony asked me to come
sort of run this team. And there was another guy over there by the name of Todd Morganfeld,
who now was the CFO of Pinterest, who I worked for.
and he and I built out just this sort of incredible team at Twitter of data science and analysts.
And eventually we consolidated sort of all the different teams.
And so one of the things I think that is fascinating because I know you have a lot of people
that listen to this that are in this world is understanding how to properly structure a data
science and analytics team at a company at scale.
And do you have them embedded?
Do you have them in a central org?
If you have them in a central org, it's the best way.
because professionally they understand how they can move up and things like that.
But there is this idea of sort of like HRBPs or things like that,
that they need to be part of these teams to really understand what's going on in these teams.
It's an interesting thing, but we were able to create a very strong central team at Twitter.
And so when I left, I got promoted to vice president of data science and analytics there.
And I was leading all the central data science and analytics, which was just a fascinating thing to be a part of.
I've got 10 extra questions, some human capital questions, some Twitter questions and some team questions.
There's lots of interesting stuff there.
So I guess we'll start at the beginning.
With the company you were building 10X or is the name, I think, you're evaluating specifically
software engineers but human capital and talent using analytics.
What were the primary lessons from that research exercise?
The thought was, and actually I started this company with someone that has been on your podcast,
Neil Robertson.
So Neil was very much the formative idea for this.
And he said, Jeff, do you want to kind of run with this and bring your own sort of flare to
this?
And so the idea was that right now we create a digital footprint every day.
and knowledge workers especially create this digital footprint, meaning email or calendar or
Salesforce. And this digital footprint is now accessible via API. So software engineers is things like
Gira, Pivotal Tracker, GitHub, things like that. That data clearly means something. But what does it
mean and what can you use it for? And so our goal was to figure out how you could use it.
Now, I think what we really believed or hoped is that we could build a bottoms up software system,
meaning individuals would want to use this because it would help their own performance
and it would help them understand and get Maslow's Pyramid of Needs.
They'd get mastery, autonomy, and they'd understand purpose and things like that within their
own performance via data.
And the idea that professional athletes are motivated very much by knowing their own statistics
and how to use that as ways to set goals, that was, again, like all this kind of stuff.
I mean, one sad lesson we learned is that people are a lot less self-motivated than we
believe.
The amount of people that really want to do that is much smaller than we believe.
And so therefore, what we found is that to do this and have it be effective, it would have to be more of a manager tool and have to be more top-down where it's mandated by managers for their individuals to use this.
Now, another thing we learned is that anytime you look at one of these systems where work is being done, that isn't sort of active work, meaning like GitHub is active work.
You're checking in code, your things like that.
But something like Jira or Pivotal Tracker, those are not active.
Those are more, you have to like teach someone what process they need to do to use this thing.
And when you have that situation, a lot of times that hygiene of the data is bad.
And so what we found is that even to start using that data, we would have to change the way that
people did work so that their data was better for us to actually analyze, which is kind of a nightmare
in itself.
How much room do you think there is for this sort of thing today?
So that was many years ago.
Has anything changed?
Literally every few months, I'll get an email from an investor friend.
or someone that'll basically say like, hey, these guys are trying to start a company similar to 10x or can you go talk to them and things like that.
I mean, I think there's an opportunity, but I think a lot of it comes down to the acceptance of the community similar to sports.
There was a lot of analogies where I would sit with engineering managers or VPs and would feel literally like sitting and talking to these coaches or these general managers from sports where there wasn't a real acceptance yet of this.
They're like, no, my best engineers, they do this.
You can't capture what they do with data.
So I think that has to change and I don't think it's quite there yet.
And then I think the data has to be better and understanding performance.
I've never thought about it, but it's almost embarrassing how little predictive modeling
or data is involved in any hiring process.
It's entirely mostly qualitative feel and short.
But an interesting problem is what are you trying to model?
What does success mean for a hire?
It seems like a hard problem.
So that's really fascinated because at the core, what you just said is how do we hire
people. We hire people by interviewing. And what is the most bias that you could ever introduce? It's
like you and me sitting across from each other. And there's this whole concept at Twitter where they
made us do a lot of this unconscious bias training. And at first I was kind of like, oh, and then I went in there.
And I was like, man, this is really valuable to really be aware of even the concept. I definitely
thought, oh, do I want to go have a beer with this person? That's a criteria for whether I want to hire
them. But that's like sort of the ultimate and bias. Whether I want to have a beer with them doesn't really
describe whether they're going to be good at their job. It describes whether they're like me.
So it's a terrible thing that I probably was doing in an interview process. But yeah, I mean,
it's, I think ultimately when you think about, for me, when I think about interviewing people,
a lot of it is just around sort of this intellectual horsepower, just this ability to sort of really
think creatively and be intellectually curious. Because the whole idea of matching skill sets and
things like that, I don't really believe in that. It's especially in the world of startups and
things like that where you're constantly adapting or changing what you do. It's really much more around,
hey, how do I find someone that can challenge me and can really think on their feet? Do you think
there are reliable ways of assessing that in a repeatable way? I'm sure there are, but I don't know them.
And I would say that I'm probably very much of a contradiction when it comes to sort of interviewing
people because I do believe that I have an intuition on people. And I do believe that very quickly,
I know whether that person is going to be good or not. So fascinating. In building the data science
team at Twitter, what lessons did you learn? So this is almost every company now is starting to hire
a team that does this or individuals that do this. What are some important lessons to think about for
people that are building or hiring data scientists? Hire scientists. And what I mean by that is
nowadays, so many people are quote unquote data scientists. And so there's a woman that worked for me
at Twitter named Juliana Pascoo and she was a economist, PhD from MIT and had an undergraduate
from Wellesley, just so thoughtful and how she approached the world and how she questioned things,
sort of learned to be much more technical over time and was constantly challenging herself.
But this idea of being very hypothesis driven and how you do data science and being,
I had really strong people that were chemistry PhDs that had essentially, they go through their
PhD program and they realize I don't want to go into academia.
So let me go take this data science boot camp where I learned how to do MapReduce and data
engineering and things like that. And I learn how to use R and Python and I learn how to program and
whatnot. And maybe I do that for six months and then I can come in and take a job at like a
Twitter or Facebook. But because I have this unique approach to understanding how to interpret data
for science, I can actually be much more useful than someone that has more of a math background or
computer science background and really has a lot more of the technical skills, but not necessarily
a lot of the foundational skills of scientific method and things like that. So,
I'm always much more, when I see a resume of someone that came through a traditional PhD program
in a science, and social sciences to me are some of the most interesting ones because of just how
hard it is to create the right environment. This woman, Esther DuFlo, I don't know if you read about her,
but she does a lot of real world in the world experiments to understand causation. And it's just
fascinating how they set up these sort of real world kind of experiments. I personally, like,
didn't really study any economics in college. And like I think it was a huge miss by me. And I'm going to
encourage, I have two sons. I'm going to encourage them to study economics as much as they can because
just the way that even the way that economics is involved from sort of classical economics to now like
behavior economics and all the work that Conneman and Tversky and all those guys have done,
it's fascinating to understand how people think and interact. Yeah, it's really good advice.
And maybe even like an arbitrage of sorts because the data science, math heavy engineers are
and such, it's very hard to find these people and to hire them. And maybe people that haven't yet
built up the technical skill set would be easier to hire. Do you think that that's true? There's
definitely an opportunity where people that are, oh my God, I just spent six years doing a PhD and I've
decided I don't really want to do chemistry or I really don't want to do X. I mean, first of all,
just the selection bias is someone that decided to do a PhD and got through it and defended a thesis.
And they've run teams before. They just don't even realize it. They've run little research teams.
that they've run their lab or whatever.
So they have all these skills that they don't realize.
And classically, their whole life, they've been thinking, yeah, I had never thought about
the arbitrage opportunity, but I definitely think there is.
And oftentimes in the data science world, I haven't really been in it for like a year
or a half when I left Twitter.
But back in those days, there was a cookie cutter type thing that people were often looking
for.
And again, back to Yuliana, one of her big things was that she always wanted to look at different
types of people to bring in, not the normal cookie cutter ones. And I think it was because she came from a
very non-traditional background. So yeah, I hadn't thought about that, but that's probably very true.
But you have to start with a core team or a couple people that can help these people because they
won't be able to be, they're not going to feel comfortable in a situation. And that's another thing
that I've learned about in the entrepreneurial world where I come from, no one sweats whether they can
do a job or not. They just figure it out. But these people that,
have these deep analytical minds, they sweat themselves, whether they can actually do a job.
They clearly can do it. They're brilliant. They're coming from a very narrow focus to going into something.
And so the unknown for them is so scary that they lose a lot of. One of the guys that worked for
me at Twitter used to say to me is we decided, there was a group of my team that were incredible
and that I was always pushing. And they were, I was rebelling against me when I pushed them.
He said to me, you know, we've kind of decided that you are right about us, but we're never ready for
you to be right about us. So fascinating. What were the most interesting problems that you were tackling
at Twitter? Yeah, I mean, there are a few that were super interesting. I think one was simply around
user growth and it was understanding. So I was at Twitter when we were struggling quite a bit with
user growth and the stock had gone from, say, 50 to 14, I think is close to where it bottomed out.
And we needed to really rewrite the story. And if you think about all the companies in the world that
had come before, Twitter that had gotten to a plateau or even like a start to, no one had recovered.
Twitter is the only story of a company that's done so. And one of the things that was challenging
at Twitter is that the top level metric that we sort of use monthly active users did not really
indicate or wasn't really indicative of what a truly healthy Twitter user was. A healthy Twitter
user does not come once a month. A Twitter user comes every day. From a standpoint of
monetization, you know a lot more about a user that comes every day and you're able to provide more
value to them through the advertising chain and they provide more value to advertisers. And so one of the
things that we did there and that they have done is look much more at this concept of month of daily
active users. And that's to the credit of all the people that work at Twitter, that's the number
that they've been able to move quite a bit and has led very much to the success of Twitter over the
last few years, but moving the goalposts as a company from monthly active users to daily active
users and even doing the data science. There's a guy named Matt Miller, who is out of Boston,
came out of MIT's Media Lab and was at a company called Bluefin, worked with a guy by the name
DeBeroy. These guys did a lot of the foundational work where they tried to understand via
modeling what true healthy usage of Twitter was. They created HMM to sort of do this. And what
they ended up finding is that the healthiest users mapped really well to sort of daily active users.
And so all this data science led to saying, hey, guys, let's really start using daily active users
as a target metric. And the concept of how important target metrics are to incenting the right
type of growth of the right type of behavior at a company, but constantly re-evaluating those
target markets, because once you really start getting good at that, you need to reevaluate them,
because probably your optimizations have caused you to almost bastardize that target metric.
So that was some interesting work.
We did really interesting work around the elections and around understanding Russian interference in the elections.
I had a team that did a lot of the foundational work for what we reported to Congress and sort of all the different things that you could find within the network.
And so it was interesting because so much of what we needed to do was work in lockstep with sort of user research.
to understand both almost like an anecdotal versus a analytics level, what's happening,
and have those two feet in because the Russians are doing all this crazy stuff on Twitter
where they're creating these fake accounts and creating coordinated efforts.
And this is nothing that hasn't been in the news in terms of just the amount of stuff that they did for manipulation.
But my team did a lot of the foundational work to sort of help figure that out.
And that was fascinating.
And then there was also some work that the team did around understanding how,
coordinated misinformation was happening on Twitter and literally how people were trying to create
fake news and trying to get fake news to bubble up in surface areas where search algorithms or
algorithms would drive what you saw and they were clearly understanding the algorithm and using
different types of coordinated attacks to try to move things up and that's what caused Twitter the work
that my team did caused Twitter to change the sort of algorithms around some of these surface areas
where they were able to rank tweets or rank accounts in terms of how much you could trust them.
What was the most interesting finding there in terms of the strategies being employed by people
trying to manipulate the existing algorithm? What were they doing?
Their behavior was around, I think a lot of it was around amplification versus creation.
So a lot of these accounts were amplifying and not creating. And people that were doing that
And one of things that was interesting was we found that many of their behaviors were similar to behaviors that we actioned on.
There was almost like, okay, certain things are a violation of terms of service.
And then certain things are sort of in the gray area that aren't quite violations of terms of service but are not potentially acceptable.
And those things that ended up being in the gray area, which weren't violations of terms of service, but were clearly coordinated attacks where the things that we found were probably the things that were leading to manipulation.
What do you think the responsibility is is a huge topic of these social platforms to police themselves?
I think it was just last week that Twitter said, you can't pay for political ads.
Facebook has said the opposite.
What do you think the responsibility is?
I think it's hard question.
And one of the things that's amazing about Twitter and I loved my time there is just how
inspirational Jack is in many ways about being fundamentally principled and how he thinks about
the world.
there was not a day or a moment that Jack is not thinking about what is Twitter's role in the world.
He's not thinking about how does Twitter make money. He's thinking about how does Twitter continue
to shape public conversation in a meaningful and important way. So I think the decision he made
ultimately to not have political ads was through very thoughtful process of what role should we play.
His statement that REACH is earned, not paid for is a very interesting thing to say.
sort of ultimate democratization of reach Twitter provides is something that he was interested in.
I think it's really challenging right now. And this is the whole deep fake thing. There's so many ways
that you can fool people into believing things. And in many ways, this is not new, right?
This is like media has been biased since back when they said you didn't have to report both
sides. And all of a sudden now this has become a thing that technology has made even more challenging.
So I think I'm in favor of it as long as they're able to
really, they're trying to crack down on many things. They have a whole team right now that works on
election manipulation and tries to understand it, not just in the U.S., but all around the world.
And the idea of sort of like this overcoming political ads, which clearly have some level of
fake news attached to them, I think it's important. I think I'm in favor of it. I don't know.
How do you feel about it? I don't know. Like you said, I think it's a really, really hard question.
I think the idea of reach being earned is a fascinating idea. The only question I have,
is, is it easier to earn a wider reach through nefarious methods than through legitimate
high quality methods, meaning the whole idea of lies traveling faster than the truth, that if you
can play to people's biases or tell them what they believe already, that's one of the fastest
ways to grow a reach. So then are we implicitly giving all the power to people that can do that
effectively? So that's a concern. I don't know that that's true, but it's a very complicated
question, as you say. Yeah, I mean, I think that that's one of the things that Twitter struggled with
a lot when I was there, and we realized it was a problem, which was this echo chamber that you create by
who you follow. And ultimately, it creates this almost self-fulfilling prophecy of what you believe.
I think one of the things, as we're talking about this idea of reach being earned versus bought,
there is a way that people can basically buy followers over time or can use advertising to promote
their own account over time. So even probably some of the reach that political people
have has been bought at some level. So it's challenging, but you do have to draw the line. And I definitely
applaud Jack for the decision he made. Yeah. You mentioned earlier thinking about things where maybe today
there's not a lot of interesting things going on, but in five or 10 years, something's going to be big.
With my kind of investor and business hat on now, which we haven't talked about a whole lot,
are there any areas that if you were just an investor, let's say, you think are underappreciated right now
in terms of industries or ideas that are going to grow a lot in the next five to 10 years?
Yeah, I mean, I think this is in many ways the journey that I'm going through right now on a personal level because I'm trying to figure out what I do next with my life.
And so I think I told you the last time I was at this stage was about a year and a half ago.
And that's when I discovered your podcast.
And I would sort of walk around in San Francisco because it's really hard to get around the city now.
And if I'd go from meeting to meeting, I'd just pop the podcast on.
and I would sort of discover many things from your podcast around the way that people are using AI or
machine learning.
I mean, I think last year you had much more of a focus on that.
And it was interesting to think through.
I mean, I think obviously the obvious answers are things like blockchain and what blockchain
enables.
Obviously, crypto gets way more attention than the underlying technology of blockchain, but the
underlying technology of blockchain and tokenization of assets.
and tokenization of what were physical goods is interesting.
I think the idea of the shared economy of renting and whatnot,
I think we've only sort of touched the iceberg on that.
The idea of delivery and just one idea is probably cities,
how cities function and how that sort of idea.
I don't really know if I had something that I was really, really interested in.
I'd probably go out.
I guess one of the things I'm interested right now is the evolution of media.
Okay.
So if you think about Netflix or Hulu or Apple Plus and all this kind of stuff, they're all like, quote unquote, evolving media. And Quibi, let's take Quibi for the Meg Whitman and Jeffrey Katzenberg company. These are all this sort of evolution of media. But they're not evolving media at all. You're literally watching the exact same thing you could have watched on your television 25 years ago. It's just better, better quality. It's better written. There's better actors. You know, even Quibi from what I hear,
the changes are going to be very not what you would call groundbreaking. They're going to be shot
a little bit differently, optimize their phone, they're going to be shorter, that kind of thing.
It'll be interesting to see. Like true interaction or true evolution of media, I think will be one
of the things to watch because my guess is that there are going to be winners that come out of
this world of the Netflix and the Hulus and the HBO Maxes. But it's going to be people that really
embrace the idea of Silicon Valley meeting Hollywood. That's what everyone wants. Everyone talks about,
but there isn't really an example yet of a company that's done that, I think, where there really is
evolved media, an evolved media experience. Do you think that that looks like video games and
traditional media sort of converging? It's just more interactive? Yeah, I think so. And I don't know
what it looks like. So I don't want to sit on my high horse and say, I understand this. I just know that
It isn't what it is right now.
The idea, millennials, none of us are millennials, but millennials and Gen Z, like, when I think
about sports, I don't see a world where they are going to sit through a three and a half hour
football game.
It's already true.
They're on their phone.
And so how do you make that content or that experience the same?
And a lot of times, the other problem is that people conflate something like e-sports with sports,
and it's not.
It's a totally different thing.
It's not like, because I'm a sports fan, I'll also want to go watch League of Legends at
HP Pavilion or something. That's not true. I think there is a real disconnect right now in terms of
media consumption and media companies. Ideal media consumption and media companies, what media
companies believe it to be. Well, this has been awesome, so interesting, so different than other
conversations I've had recently. And I think a lot of threads for people to pull on. You probably know my
closing question for everybody, which is for the kindest thing that anyone's ever done for you.
Yeah. So I'm going to make a little bit of a long answer on this because I have listened to your podcast and
I've thought about this a lot. I think anyone that's born of immigrant parents who came here
basically to make their kids have a better life, their answer has to be their parents. My dad and
mom came here from Taiwan. They were originally from China when the communist took over.
My dad, they never had cable in their lives. And if you talk about a great lesson about compounding,
my dad was a professor, my mom was a nurse anesthetist, great jobs, but none of them are what you consider
to be jobs that would set you up for the rest of your life in terms of, but they never had cable.
The only money they really ever spent was on our education. Both my sisters and I went to
Phillips Exeter Academy and then to MIT. So that's not a cheap amount of money at that level.
But yet when my mom got sick, I sort of turned to my dad and I was like, hey, dad, how are you doing
financially? Are you okay? And he was like, well, you know, this is many years ago, but he's like,
I have about $5 million in my retirement account. And I was like, what the?
And so I think clearly my dad and my mom would be my answer, but that's the easy answer.
And the other answer is a guy by the name of Kevin Compton.
So Kevin, Kevin is close with Sam Hinky and he's the operating partner at Kleiner Perkins for the heyday and now runs a company called Radar Partners.
I invited him to my wedding.
And he at the time owned the San Jose Sharks and was this tremendously passionate owner about the sharks.
The weekend that we were getting married down in Newport Beach, the sharks had game three against the,
Detroit Red Wings in Detroit. And rather than going to that game, he came to my wedding. And because the game
was Friday night when he needed to be traveling, instead of flying, he drove from San Jose down to
Newport Beach so he and his wife could listen to the game on the radio so they wouldn't miss it,
but they could still make all the events in time and have it all time perfectly. And that idea of him
coming, and he's a guy that's always shown up for everything for me, both from her social and a professional
a level. It's a guy that has had all the success in the world. And they always say the classic thing
of how you know about someone is how they treat someone that can't really do anything for them.
Everything he's done for me has been out of kindness and out of love. Two incredible answers.
I have one follow up on your parents. So what would you say are the values that they most instilled
in you in your upbringing? Yeah, it's interesting because when I think about my own life now,
they say each generation, we're becoming more and more friends with our kids. And
my parents, I love them to death, but we were not friends. They were my parents and they
pushed me really hard. I mean, the obvious thing is education, but I think really the thing that
they taught me the most is that in life, there are times you have to do things that you don't want
to do. That's just life. And you do things because you know that you're supposed to do them and
you know them because it's the right thing to do. And life isn't always fun and you have to do
things that are hard. And that's, I think, the thing they taught me. Well, this has been one of
my favorite recent conversations. So thanks for sharing the three interesting stages of your
career. Can't wait for see what you do next. And I hope to stay in touch. Thanks.
Thank you.
Hey, everyone. Patrick here again. To find more episodes of InvestorFieldguide.com forward slash
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