I know most have been disappointed with JO; mainly due to his health. But I think he's been a tremendous asset on the defensive end when he has played. And while he wouldn't be considered a key contributor on this team he certainly has a lot to offer and makes this team very strong overall; think of having JO as your 3rd center if everyone is healthy, not bad.
Now if he has surgery, I think it pretty much opens for the door for a Rasheed return.
If he doesn't have surgery, we're going to have a guy that's in and out of the lineup and we can't really depend on him or have a set rotation. Which means he'll probably go way down in the pecking order once Perk returns. In which case he becomes an end of the bench guy, maybe again opening the door for Rasheed?