Here's how I see it:
We lost because of 2 things: turnovers and BAD defense.
Turnovers can be fixed by individual discipline by every player that touches the ball, and making good decisions.
The defense is the one that is probably 2 years away from being fixed IMO. It's been said a million times this year, we simply don't have the athletes on defense that we need in order to field a dominant or even competitive defense. That part is coming IMO. Recruiting was geared toward offensive players in the first 2 years Bo was here, and his recruiting has picked up in the last 2 or 3 years since he realized the true importance of recruiting. It may sound like an excuse, but believe me, it's not. I think the younger guys that Bo has recruited and is recruiting will be able to make the D much better.
The defense was just not physical enough at the point of attack. To stop a mobile QB or a good rushing attack, the best way to stop it is to get there before the runner gets started. For the first 2 or 3 possessions on defense, Bo blitzed like crazy. Then our guys stopped being as aggressive as they were at the beginning, and Bo went back to his cover-2 scheme. At that point, tOSU moved the ball at will.
I'm not satisfied with where we are at as a team, but thinking about the team we were before Bo got here, I am willing to give Bo another 2 or 3 years to win a conference title and finally field an elite, disciplined team.
I really believe in Bo as a human being, and also as a coach. I love how he runs the team as a family, and that's the way it should be.