Really? I had no clue that the fans picked the pitchers... oh, that's right they don't.
Ass.
You're right, managers pick whomever they want, take guys who are having the half season of their lives, and often have to take guys just to make sure each team has a rep between the pitchers and bench. It's utterly meaningless hence Jason Marquis, Zack Duke and Edwin Jackson just last year.
