What is Moneyball?
"It's typical if you write a book, you want to be the hero. That is apparently what Beane has done."
-Joe Morgan
Are we really this confused?
Although this may be the craziest and most inaccurate of them all, many more crazy and inaccurate have been said about Michael Lewis’ 2003 book, Moneyball: The Art of Winning an Unfair Game. Sports writers routinely use the term “Moneyball” to describe a wide variety of baseball scenarios, such as: teams with fat guys who can draw a walk but can’t play the field, teams who use any type of computer or math related concepts to evaluate players, and especially, any team with a general manager under the age of 40. But those who lump together all the “Moneyball” teams as young nerds obsessed with OPS are missing the point.
Moneyball isn’t about any of those things.
Put simply, Moneyball is a book about allocating limited resources efficiently, a topic not so surprising considering that Lewis is an economist. In the book, the Oakland A’s disregard defense and look for players with high OBP not because these players are significantly better, but because they are significantly cheaper. Because the A’s operate on an extremely limited budget, they are forced to look for players with skills that are undervalued by other teams. Consider the following two players:
Player A: excellent defense, average OBP, $2 million salary
Player B: average defense, excellent OBP, $1 million salary
In this example, the “Moneyball” team would probably take player B. And in the summer of 2002, when Michael Lewis was following the A’s, major league teams were faced with many decisions similar to this one. But, what if you reverse the salaries?
Player A: excellent defense, average OBP, $1 million salary
Player B: average defense, excellent OBP, $2 million salary
The vast majority of the sports media would lead you to believe that a “Moneyball” team would still take player B. But, they wouldn’t. How do I know? Because this is basically what happened to the value of baseball players from 2002-2006.
Other teams watched the A’s ride high OBP and low payrolls to 90 wins and began to copy the formula. Subsequently, the high OBP players became more expensive, while the defensive players became more undervalued. And the teams who were paying attention started to shift their focus. Consider these two opening day lineups for the Oakland A’s, one in 2002 and one in 2006:
2002
C: Ramon Hernandez
1B: Carlos Pena
2B: Randy Velarde
SS: Miguel Tejada
3B: Eric Chavez
LF: Jeremy Giambi
CF: Terrence Long
RF: David Justice
DH: Scott Hatteberg
Team Payroll Rank: 25th
2006
C: Jason Kendall
1B: Nick Swisher
2B: Mark Ellis
SS: Bobby Crosby
3B: Eric Chavez
LF: Jay Payton
CF: Mark Kotsay
RF: Milton Bradley
DH: Frank Thomas
Team Payroll Rank: 21st
Notice anything? The A’s sacrificed OBP for a vastly improved defense, especially in the outfield, while barely increasing their financial commitment relative to the other teams. In other words, they found that the bargains weren’t in OBP anymore, but instead in defensive players, and acted accordingly.
This, my friends, is “Moneyball.”

