Hibbert is a little stiff, lacks lateral quickness, and his college stats sort of plateaued, leaving a lot of people to question how much upside he really has. That being said, I don't think he's a sure-fire bust.
He's got better post moves than most centers, especially centers his size. He has a decent stroke from the outside. He's a good passer. He has pretty good instincts defensively. I do agree with the assessment that he's probably going to be a career backup, but I think he can be a fairly good backup.