That's a good point, and I understand your sentiment. However, IMO, if Pryor does not return, then I believe it would be an enormous mistake not to start Miller. I understand that critics believe that throwing an inexperienced (well, no experience, really) could be detrimental to their growth and psyche, but I'm sure that most of you all will agree with me that this whole scandal is unlike anything that most programs have ever seen.
Therefore, I believe it would be most prudent, and in the program's best interests to mold Braxton Miller into the QB that they believe he can be from the get-go. Let him get a taste of adversity, and let him learn from his mistakes. Off-field maturity and becoming a student of the game are important, but why delay his development for a year? At this point we don't have much to lose by not starting him immediately. Sure, the homers will state that we have a championship-caliber team, and starting a freshman will kill any championship aspirations, but let's face the facts: this year is going to be a test unlike any other, for the players and fans. Placing Braxton Miller under center, and having Buckeye fans unite by sharing our undivided and undying support will give this kid plenty of support and confidence to grow into the commanding role that tOSU QB position requires.
FWIW, Colt McCoy got his shot as freshman, and he hit a couple forks in the road along the way, but he learned from his experiences. It's better to learn from our failures directly rather than witnessing it from the sidelines. That way, Miller can use his pain, heartbreak, and experiences that most QB's endure and transform it into fuel to succeed.