Saturday, February 14, 2009

"Manu Ginóbili is a statistical freak"

Michael Lewis, the author of "Moneyball," has an interesting piece in the latest New York Times Magazine ("The No-Stats All-Star").

Ostensibly, Lewis is writing about Houston Rockets' forward Shane Battier. But Lewis is really interested in how traditional basketball statistics don't necessarily reveal a player's impact or effect on his fellow players, and how people like Daryl Morey, the Rockets’ general manager, are using stats in new ways to build better teams and better players.
The big challenge on any basketball court is to measure the right things. The five players on any basketball team are far more than the sum of their parts; the Rockets devote a lot of energy to untangling subtle interactions among the team’s elements. To get at this they need something that basketball hasn’t historically supplied: meaningful statistics. For most of its history basketball has measured not so much what is important as what is easy to measure — points, rebounds, assists, steals, blocked shots — and these measurements have warped perceptions of the game. (“Someone created the box score,” Morey says, “and he should be shot.”) How many points a player scores, for example, is no true indication of how much he has helped his team. Another example: if you want to know a player’s value as a ­rebounder, you need to know not whether he got a rebound but the likelihood of the team getting the rebound when a missed shot enters that player’s zone.
Lewis also has some unique praise for Manu Ginobili:
Battier learns a lot from studying the data on the superstars he is usually assigned to guard. For instance, the numbers show him that Allen Iverson is one of the most efficient scorers in the N.B.A. when he goes to his right; when he goes to his left he kills his team. The Golden State Warriors forward Stephen Jackson is an even stranger case. “Steve Jackson,” Battier says, “is statistically better going to his right, but he loves to go to his left — and goes to his left almost twice as often.” The San Antonio Spurs’ Manu Ginóbili is a statistical freak: he has no imbalance whatsoever in his game — there is no one way to play him that is better than another. He is equally efficient both off the dribble and off the pass, going left and right and from any spot on the floor.

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