The three areas of most concern to me are motor/football IQ, height, and potential weight. I have never understood why the various sites never try to guestimate what a guy can max a body frame at.
The Miller kid is a good example. He gets listed at 237 but can his frame take 265?
Yeah, I get frustrated by this, too. Some of the "2nd-tier" guys who actually show up at the All-star game and Combine weigh-ins will more often take stabs at this than the big cheeses, but they don't for every player, so it's inconsistent info. Every so often, though, you'll get three or four of those guys independently agreeing one way or the other.
Anyway, I have no objection to Miller as a player, even if he maxes out at only 245. My only real objection is to the idea that he's SOOoooo good that we need to trade nearly half our draft to take him at #7 or thereabouts. Just my prejudice, I suppose, but I'd rather take four players at various positions who grade out in the 6.6-7.4 range than trade those four picks for one guy who grades out at 8.5 - 9.0. In the long run, I think you inevitably get more total production (and wins) out of those four picks.