What exactly is the problem with Bargnani? He's shooting 45% from 3pt - way up from last year. He has more rebounds in the same amount of minutes. His 1 on 1 defense is vastly improved. He still sucks as a help defender, he still makes a ton of mistakes in defense - but really, what did you expect after just one summer? You can judge his improvement at the end of the season, not at the beginning imo. He had 3-4 outstanding games, and 3-4 horrible games, and a bunch of so-sos.
All in all, he's pretty much where he should be - maybe our expectations were too high?