Kornheiser on MNF

Here's what I think the problem is with the current dynamic in the booth on MNF - Theismann has no sense of humor. Kornheiser is making a joke about having a 7'6" defensive lineman to effectively swat down passes when Theismann starts whining about how someone that big doesn't have the mobility to stop the run. Did they forget to tell Joey T that Kornheiser is just there to say something mildly amusing every now and then? I liked Kornheiser's retort about starting a giraffe, subtly mocking the fact Theismann is a douchebag.