I like this pick very much, but I'm not buying that his floor is BBD. From what I've seen of this kid, he lacks athleticism. And of course we know about the back issue.
Doesn't mean he can't play, but it does mean that it's not inconceivable that he could be a total bust and out of the league in 2 or 3 years.
All that being said, I think he is one of the best offensive players in this draft, and I LOVE the pick.