If anything, they should get rid of Craig Kilborn. Jimmy Kimmel is okay...but he's trying to compete with Leno and Letterman, and when you compete with the two L's...you're bound to get a 3rd L, which is a loss. The JK show should die within this season.
Craig Kilborn show is the most awful latenight show ever, even worst than Carson Daly's. But Carson is on at 1:35, so I'm not too concerned about him.