Masters of the Glove

I finished reading Wizardry a few days ago and it's not a D&D manual for aspiring Dungeon Masters. It is, in fact, a book in which a man tries to formulate a system for evaluating the defensive capabilities of baseball players. So it's just as obscure and only of interest to a small and similarly obsessed set of people. I'm not sure how good it is because I really ought to go back and work through the math a bit more, but it seems plausible on the face. He doesn't have too many revolutionary judgements, but that would seem to be a point in his favour. There are a few surprises though; some of the magnitude of differences is interesting as well as some of the judgements he makes about just how costly some of these players are in the field.