Jarrett Lee is incredibly erratic and today he is being eaten alive. Against the top teams in the league, he has been mediocre to terrible. Teams lose starting QB's all the time. The only thing Miles wouldn't have been completely prepared for was Perrilloux's dismissal. However, with his history, you'd have to think an intelligent person would have a competent back-up plan. He didn't. In addition, LSU has the worst defense in the SEC. I know they lost a lot of starters, but you would expect an LSU to reload and at least have a decent defense. They don't. WE scored 24 on them. Let that sink in for a second.
My overall point is that most unbiased observers are noticing a bit of a slip from LSU. You, however, are not unbiased when it comes to LSU, as we've seen. My thought is that LSU will drop down to a 7-9 win team in the next few years instead of the consistent 10-11 wins. Miles is not a bad coach. He's good, actually. Problem is that Saban is better, and Miles won't be able to sustain long-term the success Saban created.