Honestly, I can see Byron Young and possibly evenHooker going before Hyatt. I think Wright is likely the first Vol off the board unless Young balls out in the combine. I think Wright and Hooker are pretty much set in where they go irrespective of combine results unless they are insanely good or bad. Hyatt is the guy that needs a good combine and pro day more than any of the other Tillman also to a lesser extent. I think if Tillman has a really good combine and Hyatt runs badly like a 4.43 or something he gets drafted ahead of him. Hyatt HAS to pretty much run a 4.3 something because speed is his only real calling card.. there are other things he does ok but that's his only elite skill. He is not exceptionally shifty, or great at getting separation, has no special teams experience to speak of, and finally has a small frame (press coverage). Neither of those things is a dealbreaker because he's not terrible at those things either. but all together honestly Tillman is a better NFL prospect to him if he can show he's healed.
I think Butler and Wright are most likely to go first-round. Hooker could go depending on what order QBs come off the board and who has him rated over Levis/Richardson. There are some scouts that have him rated as #3 behind Stroud and Young. and almost universally he's at worst rated 5th at his position.