I had been thinking the steelers take a RB in third or fourth. Need a backup to spell Mendenhall. Now, we may need WR. McCluster is smallish, but quicker than quick. Played WR and RB in college. Not big enough to be a starting RB, but the guy looks fantastic. Search for his Senior Bowl workouts and you will be impressed.
Not sure if Arians will know how to use him, but could be quite a weapon. Probably need to take him in second.