I really wouldn't mind Clarett late in the draft.
It remains to be seen how talented he currently is or if his talent will translate to the NFL. But sometimes a guy like this just needs the proper pushing, and I'd trust Parcells in such a role.
I like taking risks on players like this in the latter rounds than just taking guys that project to nothing more than gunners on special teams. It's in the high rounds, with guaranteed money, where you want to avoid these types like the plague.