We haven't see much of Lindsey Hunter lately, but that's not (just) because he's being replaced by Tony Delk in the rotation. From the Detroit News:
Lindsey Hunter sat out most of practice Thursday as he continues to wage a fight against all sorts of irritants. He still hasn't regained the weight and stamina he lost after bouts with the flu and food poisoning. On top of that, he was dealing with a toothache Wednesday night and Thursday.