http://en.wikipedia.org/wiki/Sabermetrics#General_principles俺觉得这句话尤其重要:
Sabermetric reasoning would say that runs win ballgames, and that a good measure of a player's worth is his ability to help his team score more runs than the opposing team.
这其实是选择指标的最高指导原则:先找出赢球的关键为何。