I think another factor people seem to be missing here is that if you are truly building for the future, Peterman has to play the rest of these games.   If he plays excellent and you come close to making the playoffs or even make the playoffs with him, then excellent, he's the guy. If he plays pretty good but the offense still falters or is just average and you aren't quite sold on him, you either have your competition for the new guy OR he becomes valuable in a trade scenario. Teams li