The thing is, it's FAR from certain that his floor is a double/double athletic big. If it was, he'd be #2/#1a on everyone's big board.
I don't think so... or else wouldn't we be able to trade Andy for one of the top picks in the draft? You always hope for more - a lot more - that's why you play the draft game.
The problem with Drummond is that both his upside and his downside are in doubt .. but hey, he's still got a great chance to go top-5.