A big practice body at best. But a net negative if he takes minutes from Stiemsma or Johnson, rookies who at least have upside.
to be honest, while a bigger name its not like Ronny Turiaf is that much better at rebounding/scoring.
But point remains that he is better at both, he's also the better defender, the wilier player, moves the ball fairly well for a center, and turns it over half as often.