1
Jason Bay *might* (or might not) be a below-average corner outfielder. I don't know. But:
1) Bay is fast for a corner OF. We are not talking Pete Incaviglia, or even Raul Ibanez, SX's here.
2) There are a lot of LF's who are bat-first players. If Fangraphs argues against bat-first LF'ers as a concept, it's putting itself in an unfortunate position.
Jason Bay is a cleanup hitter who plays LF, and he has good wheels. I'm very skeptical of the skepticism on him. It smacks of "Hey! We just figured out that Babe Ruth was overrated!"
That's not to say that those who believe such, don't get to talk. They do. But so do Sandy and I. :- )