It is partially guaranteed. Okafor continues to play old school basketball. He is not longer the type of player that is needed in today’s NBA. He is slow, doesn't defend, doesn't rebound and doesn't shoot the 3. He doesn’t space the offense like any other center with good shooting range. Vuch can do that.
He is just a big heavy body with good footwork who can score in the paint.
This is truly his last chance. I hope he works on his defense and rebounding. If he does this well , I think he might be able to stick around a little bit longer. I wish him the best.