Scorecasting: The Hidden Influences Behind How Sports are Played and Games are Won Tobias J. Moskowitz and L. Jon Wertheim (New York: Crown Archetype, 2011)
When I settled in to read Scorecasting I assumed – rightly so – that it would read quite a bit like another book about the truths of statistics in sports, Mathletics. Scorecasting, however, is much more about the broader aspects of the game and team performance and influence, and as such is a nice complement to the more player statistic-oriented Mathletics.
Scorecasting is a very easy read if you are willing to either glaze your eyes when pounded with statistics and just trust the authors or take the time and think about the numbers. I did a bit of both, honestly. Understand that this partly because the malleability of statistics is notorious; the argument is what you should be concerned with.
At various times throughout the book the authors address the issue of statistic manipulation (Damned Statistics) and the way it affects perceptions of performance, and thus real dollars (Rounding First). Yet they also commit this same inclusion bias when arguing about the true competitive nature of sports. Using the Pirates and Steelers as test cases, Moskowitz and Wertheim use market shares to explain why baseball is in fact the least competitive sport. In a league where there is no salary cap and the playoffs are decided by 5 or 7 games series, it is no surprise that the Yankees, with the potential to field the best team and in a sport whose playoffs inevitably favor the better team, have a gigantic 25 percent market share. But this vilification of the Yankees ignores the fact that the teams with the second and third largest market shares of championships (the St. Louis Cardinals and San Francisco Giants) do not play in the second or third largest markets (LA and Chicago).
On an individual statistics level, Scorecasting contributes little, rehashing tired arguments about blocked shots (The Value of the Blocked Shot) and players being ‘on fire’ (The Myth of the Hot Hand). The former’s inclusion is troubling because anyone who has ever watched a single quarter of basketball and possesses a functioning brain understands there is more value in blocking a shot to a teammate than swatting it off Jack Nicholson’s face out of bounds. The latter is more troubling for other reasons. Yes, it is true that ‘on fire’ is an unpredictable statistical anomaly. And yes, it is true that by the logic of “every basketball player I have ever talked to believes in the concept of ‘on fire’” we also have to believe the Jehovah’s Witnesses. Specific to this book, however, the argument of the Hot Hand is exceedingly problematic in its lack of sports psychology. Whereas in an earlier chapter (Tiger Woods is Human) Moskowitz and Wertheim explain how loss aversion impacts golfers such that “when a golfer on the PGA Tour tries to make a birdie, he is less successful than when he lines up the exact same putt for par.” (67). And while loss aversion is not the proper psychological trait to call upon when discussing a player ‘on fire’, the lack of psychological discussion of any nature is arrogantly selective.
For the handful of problems that are evident in Scorecasting the interesting and quality arguments outweigh them. One of the primary targets of their statistical ire are the long held general platitudes of winning. My favorite attack is the one aimed at the tiresome and untrue mantra of “Defense wins championships”. Aside from the fact that this is idiotically counterintuitive since the point of sports is scoring, the authors in their chapter Offense Wins Championships Too show that there is no statistical correlation between defensive performance and championship pedigree.
In fact, the authors argue that the saying was simply a way for Michael Jordan to motivate his teammates to perform well in the unglamorous job of playing tough defense. There’s No I In Team explains that for all the preaching of teamwork in the NBA, a team’s chances of heading home with the Larry O’Brien trophy in June are heavily influenced by the number of stars and superstars they have. The final anti-sentiment that Scorecasting proposes is that ‘icing’ and athlete – be they kicker, free throw shooter, etc. – has absolutely no bearing on the result. Performance in either situation is identical. Additionally, the book attacks the theory that punting is the best 4th down option. According to Moskowitz and Wetheim’s statistics, football teams are better of going for it. Every time.
Perhaps the most interesting arguments are those that analyze officiating and home field advantage. The simple summation of the authors’ findings is that officials do commit errors, but the errors are most often in favor of the home team (to placate their anxiety in front of the home crown) and/or in order to ensure that the game’s result is determined by the athletes, not the officials.
The authors argue that the book is an attempt to analyze sports with ‘hindsight bias’ removed. In layman’s terms, they want us to not ‘play the result’. This desire is both very fair and important to furthering our understanding of sports. However, in attempting to remove any trace of playing the result, Moskowitz and Wertheim also forget – often – about the people actually playing the game. The statistics they use are large samples, controlled and normalized to remove situational biases. Yet all the while they forget about the fact that every sport interaction is a biased situation. But to control for all of the important variables (who is guarding your best shooter, who is pitching, whether there’s a nickel back on the field) might be akin to insanity. Scorecasting is valuable in that it looks at large sample sizes and speaks to some of the broader ideas that are unsupportable when illuminated with statistics.
The best chapter in the book by far is entitled Are the Chicago Cubs Cursed? in which the outstanding futility of the Cubs is analyzed from a statistical perspective. One of the conclusions reached is that unlike other teams where performance and ticket prices have a significant effect on attendance, Cubs fans use a different indicator: beer prices. God Bless America.