we'll still need ian for certain matchups (we don't have that many 7 footers). We'll especially need him during back-to-back games that tim sits out.
Ian has been praised for his defense, and everyone should remember that he is playing again after not playing for a year, it will take some time for him to return to where he was a couple years ago (when he was the best center in the d-league, and still had the potential to be even better). I think the spurs would be nuts to cut him, i don't think it will happen.