We've got a couple of role players who can take up minutes at the center position behind JO. This is a nice thing, and one that it didn't necessarily look like we'd have a month of so ago.
It doesn't matter to me who gets more minutes as long as our bigs play defense, rebound, set picks, and score the ball on the occasions where they are put in positions to do so.
My guess is that if JO and Wilcox are both healthy, Greg will be pushed to the third string for a while. Then, everyone will be screaming for Doc's head on a platter.
Greg will keep himself ready, though, and when one of the guys in front of him goes down for a few games, he will perform admirably.