Bronco's multiple 10 win seasons were against lousy competition
Bronco 3rd ranked defense didn't shut down Oregon State
Bronco's blowout over #15 Texas wasn't fun because Texas sucks
Bronco's 59-0 blowout over UCLA (with Norm Chow as OC, who should have been BYU's head coach) wasn't fun either because UCLA was not good that year.
Bronco's blowouts of Oregon and Oregon State in the Las Vegas Bowl weren't blowouts in BCS bowls
Bronco's conference championships sucked because we weren't in the BCS
Bronco's victory over 3rd ranked Oklahoma in Jerry's World sucked because he didn't win all the rest of his games that year
Bronco doesn't win every single game.
Bronco doesn't put players in the NFL and certainly had nothing to do with the development of Ziggy, who had to get to where he was in spite of Bronco

The fact is Bronco has given us a pretty good ride and done some amazing things. His history hasn't fully played out. I still think he's capable of more. Moreover, of those excuses listed, I've never heard any of those from his mouth. When he makes a mistake, he usually fixes it (e.g., Jaime Hill).