I think you agreed with me on everything, just maybe not the extent, but you mentioned something I forgot, the RTC That's a big draw for all the really good wrestlers. Maybe OSU should try to get an RTC, assuming they can get the financial backing.
Name recognition wise there are a lot of guys more exciting than old John. Any of the current crop of US Senior wrestlers age 30 or so would probably make a fine coach, especially a technique guy like Taylor. That said I strongly dislike Askren, and I don't think Burroughs can teach what makes him special on the mat. Don't get me wrong, I'm not saying JB wouldn't be a good coach, I'm just saying he can't teach his athleticism/explosiveness, that sort of thing is innate.
As for John Smith, he treated me decent when we were both FR at OSU. I was nobody in that room, but he was a HS superstar. I'm sure he's been hardened over the years, like everyone gets with age.
There are going to be a lot of other guys retiring in the next few years: the Brands boys, Dresser, Ryan, and many others. There will be a sea change in NCAA coaching in the next decade.