First...if he redshirted what is standout about him?
Second...I maintain the same opinion as always with the super tall (6'7" and up) guys...they almost never work out in football. I know there are exceptions but almost every one of them I see just looks clumsy and awkward out there.
IMO these are the type of additions I think we should be making at WR edge, and DB. Idk what happened at USC but he was a starter on the Boise state playoff team and would improve the floor of the WR room.