Kurtz wrote:It doesn't really require a study.
This is something that came out of a debate that myself and Schad had perhaps a month ago.
Closers are in a unique situation where it makes all the difference in the world if they give up 1 run in a 1-run save situation, or 1 run in a 3-run save situation. In the latter case that run is inconsequential, in the former, it means everything.
I asked Schad if the WAR stat could tell the difference, and he admitted that no, it could not.
Thus the WAR stat is broken for closers. Shad did bring up another stat that does a better job of capturing the difference, though.
Again though, WPA is descriptive; it only tells you how the pitcher has done in the situations in which they pitched, and little to nothing about how they would do if placed in those situations again. Thus, Jonathan Papelbon`s WPA fluctuated massively...he posted his best numbers in many respects in 2008, but as he gave up runs at the wrong time, his WPA was poor. Didn`t mean he suddenly became less of a steely-eyed closer, he just got caught out by natural variance in the numbers.