Ugh man. Dorrell was a failure at UCLA, no way around it. And it's not in any way denigrating CU to say that it's a hell of a lot easier to win there than in Boulder.
You mention 5 straight bowl games. Why don't you mention his record in those games? (Hint: it's the same as his record vs USC). You're cherry picking and your logic deserves to be attacked.
He lost at least 6 games in 4 of 5 years and then got FIRED. This is where you trot out his Pac-10 COTY award, but don't mention that UCLA finished 3rd(outright) in the conference. CU hired a retread, and not even one who was successful to begin with. And yes, desperate times.
When you can't attack the reason, attack the person. It's as clear an indicator as there is that you don't have a leg to stand on. Questioning someone's fandom is about as low and lazy as it gets, and again, is a sure sign you just got destroyed.