I disagree about the defense. A lot depends on who is healthy (and who they choose to play), but I think if they do actually TRY to put their best team out there, they should be somewhere in the middle of the pack defensively. Yeah, they don't have a rim protector, which makes a difference. But, they have a lot of good to excellent perimeter defenders (Bradley, Lee, Wallace, Rondo, Green), and they have some big men who are at the very least decent team defenders. If Stevens is anywhere near what he is being sold as, this team should play decent...and probably aggressive defense.
The offense could potentially be horrible though.