Not even close... If we could get a good center for sully then you do it. it's not that he isn't a good player, it's jus.t that his size and athleticism is going to keep his ceiling down IMO. He doesn't have the ability to create his own shot, not great putting it on the floor, inconsistent shooter, and struggles down low vs longer PFs and Cs.
His strengths would be the exact strengths of the center we would get.. Only we would have 4 more inches in length (shot blocking, etc).