I think we have a good coaching staff this year that's able to determine if a young RB is a keeper or not. As fans, we're obliged to trust them and their experience to do their job capably. He might be assigned to the practice squad if they feel he needs additional seasoning.
Will McClay and the coaching staff, obviously, thought enough of him to recommend him to become drafted. We'll see how he fares in training camp and maybe later, if he's able to make the team. He seems to have the extra size and power to make a good impression, from what I've seen of him.