If it were me, I would be "Yeah, I had a bad game, but we won, so I'll take it, and just get better next time".
The guy is clearly an egomaniac. I heard a story about how someone on ESPN said that Tebow would never play QB in the NFL- which I agree with unless it's a wildcat position- and Tebow actually called in to the show to confront the guy on the phone. This is another reason why I don't think he's going to make it in the NFL- when he goes to a team, he's going to be another rookie having to prove himself, and they're not going to care how many Heisman's, NC's, and starving children Bible school's you run. I'm not sure that he can handle it. And on top of it, now he has a history of concussions to go with his weak arm and awful throwing mechanics.