Margus Hunt will likely skyrocket up draft boards; I think he'll show exceptionally well at the combine.
With the Strongside backer having more coverage responsibility, I would still be interested in trying out Hali as a 5-tech with Houston sliding over to the weak side. I don't know that he's big enough to pull it off, but I'd sure be interested in seeing him try. He's become an expert at shooting gaps (and getting held), so I think he could make a huge splash knifing through gaps into the backfield.
I really would hate to waste Houston's first step in a coverage role.
"Tact is the ability to tell someone to go to hell in such a way that they look forward to the trip"