Bargnani has a scorer's mentality. You see it out on the court. He loves scoring and really you DO need guys like that on your team.
That being said, when this team has so many holes to fill, coupled with the expectaions of being the first overall pick along with play a position where our expecations are different, then well, you get what you're seeing from the fans.
He's ideally suited to come off the bench, but I don't know if that would work here as he seems to get disinterested a bit. He's such an enigma.