Title made me laugh lol. In all seriousness, and I noticed this his freshman year -- he may be the stiffest, non-fluid player I can remember in Orange. He is 6-8, so maybe a tad smaller than some of the higher caliber PFs he is going against but has a natural jumping spring that is uncanny. Unfortunately he is one dimensional -- a very stiff rebounder who has not been rebounding. If he's not rebounding there is nothing he can do out there to help the team.
Think about how fluid Grant was compared to him. Almost the same size, both with hops -- but Grant was a fluid player. Roberson, who I have rooted for since day one, seems c3p0 stiff out there playing, like the game never really slowed down for him in all 4 years here.