JO playing for even half the season is better than JO not playing at all. Our options for replacement are very limited, especially with the uncertainty surrounding the CBA. What if there is a long lockout, JO retires as well, Krstic goes off to Europe, and we're forced to start BBD with some D-leaguer / rookie backing him up?
Outside of a major trade, I don't think we're going to do better than JO / Krstic / BBD manning the center position, unfortunately.