WSJ rates Baseball Managers
Posted: Sun Mar 30, 2008 11:57 am
METHODOLOGY
Assessing managers is difficult, since their win-loss records are closely tied to the team's talent level. Because of that, we used three metrics designed to reveal a manager's acumen ó performance in close games, "Pythagorean" win expectations and whether they got the most out of their players ó then averaged each manager's ranking in those categories for a final score.
For the close-games category, we subtracted each manager's overall winning percentage from his winning percentage in games tied after the sixth inning, thus determining whether he performs better or worse in close games. The win-expectations chart compares the number of games each manager's team won versus how many it should've won based on how many runs it scored and allowed (also known as the team's Pythagorean expectation). The third category states how many additional games a manager won or lost for his team per season. David Gassko, a contributor to the Hardball Times Web site, arrived at those figures by comparing how players' statistics improved or declined under different managers (with adjustments for age and other variables).
The data for the first two categories is for the past five regular seasons and is from Baseball Info Solutions, a firm that provides statistical information. The data for the third category is from all of major-league history through the 2006 season. The 20 managers listed are current major-league skippers who managed a full season before 2007.
http://online.wsj.com/public/resources/ ... rt=overall
BTW - Oz is 6th by their criteria ...
Assessing managers is difficult, since their win-loss records are closely tied to the team's talent level. Because of that, we used three metrics designed to reveal a manager's acumen ó performance in close games, "Pythagorean" win expectations and whether they got the most out of their players ó then averaged each manager's ranking in those categories for a final score.
For the close-games category, we subtracted each manager's overall winning percentage from his winning percentage in games tied after the sixth inning, thus determining whether he performs better or worse in close games. The win-expectations chart compares the number of games each manager's team won versus how many it should've won based on how many runs it scored and allowed (also known as the team's Pythagorean expectation). The third category states how many additional games a manager won or lost for his team per season. David Gassko, a contributor to the Hardball Times Web site, arrived at those figures by comparing how players' statistics improved or declined under different managers (with adjustments for age and other variables).
The data for the first two categories is for the past five regular seasons and is from Baseball Info Solutions, a firm that provides statistical information. The data for the third category is from all of major-league history through the 2006 season. The 20 managers listed are current major-league skippers who managed a full season before 2007.
http://online.wsj.com/public/resources/ ... rt=overall
BTW - Oz is 6th by their criteria ...