He's a Marinelli 4-3 DT. Nothing more. And Marinelli's not around.
If the Cowboys are going to a base 3-4 he's going to have to compete with rookie draftees.
The NFL moves fast, and not just on the field, if it's a choice between a freshly drafted guy and Hill, there's really no reason to keep Hill, unless he outshines the rookies by quite a bit, and to this point we've seen little that indicates he can do so.
Should be at least a decent trade possibility, I would think, there's always teams out there willing to sign a young, highly drafted player that might (just) be a "diamond in the rough"....