whether it was earned in the past or not is a thing for debate. I could buy an argument that says it was somewhat earned in the past. I could also buy the argument that it was not. That is a tough call.
As to whether Bo is a defensive guru now... that is not up for debate. the answer is emphatically... NO. We have to follow where the data leads... and the data is in on this one... Bo's recent teams have been far, far, far removed from what could be objectively described as "well coached." A guru he may at one time have been... but the game evolves and that was then and this is now... he is no defensive guru now.
This seems entirely reasonable. Bo learned most of his defensive philosophy while in the NFL for eight years. I don't know that he innovated much on any of the basic concepts. When I think of terms like guru or genius in the context of football, I think of great innovation. So I probably wouldn't go that far with Bo. He understood the concepts very well and had the right type of personality to coach defensive players. Combine those with the the amount of talent he had to work with in 2003, and you had the perfect storm for great defensive results. Same goes for 2009 and 2010. But when the talent isn't great, his defenses run into big problems. And he's very stubborn about the way he does things. I envision his output like this:
From what I've heard, the big boosters wanted him back in 2008 and TO didn't have much of a choice. This may or may not be true, but it would make sense to me. The boosters emotions are no different than any of the fans', and Bo was very popular because he was the last string holding together our decades of proud tradition that had started to crumble between 2000 and 2007. I remember being at the 2000 Alamo Bowl and listening to everyone chant "We want Bo!". It may not have been the most logical desire, but it made sense from an emotional perspective. Bo's personality fit here and Frank hired him, so (in a minor way) he was the last viable link to Frank, Tom and Bob. Since Frank had already been fired, the fans wanted to hold onto whatever remaining link they could. They didn't want to see an outside hire with a whole new staff to break the 40-year continuity that was so rare in college football.
After Callahan was fired, those emotions from the Alamo post-game came rushing back, and the powers that be were set on Bo. As a head coach, he was entirely unproven-- literally had never been in the position at any level. So it was a risky hire. But maybe he was the best available. I don't know. The results have been better than Callahan but still mixed. With great talent his defenses can be scary. With average talent, they can be scary bad. We all laugh at Cosgrove as the epitome of a clueless defensive coordinator, but several of Bo's games have matched or exceeded Cosgrove's worst. We can't ignore that. And Bo's assistant hires have not been home runs by any amount of Kool-Aid.
I'm not drawing any grand conclusions from any of this, but it's safe to say that 2012 is not where we want to be. And what we saw against Wyoming is not where we want to be. Maybe Bo has lots of potential for change and improvement. Maybe not. All we can do is wait and see, and hope. And get in lots and lots of ridiculous arguments about it on the internet.
