How can Hill be too small for the Pats???? Hobbs, Poole, Samuel are all well under six foot. Size is not a huge factor for BB at CB. Quickness, intelligence and toughness are much more important to him.
Heck you don't even need fluid hips to play DB for BB. Read the reports on Hobbs and Sanders coming out of college last year. Both were deemed to have tight hips, but BB made it work.
My beef with Hill is what I said a couple of months ago, I doubt his playing speed or quickness. My grandmother could catch an out route in front of him. He's usually backpedaling before the offense breaks the huddle. Other than that, which may be a technique problem and certainly fixable, I'd take him in the first round.