BBD *is* pretty good, but you don't see teams rushing to double him. Put him in what I would expect to be a normal mid-season rotation with 'Sheed, House, Daniels, and either Pierce or Ray, and he's probably the fourth-best offensive player on the court. They aren't leaving any of the other guys alone to double on BBD, they'd rather he shoot it than most of the other guys he's likely to be on the court with.
Sweetney's kinda the same deal, he's got skills down low but he's not SO good that he's going to be the one that the opposition is keyed in on stopping (and therefore opening up opportunities for other guys).