Look, you're entitled to your opinions, and there probably are not any facts that are going to get you to change your mind, but...
Yes, Coker was a first-time HC. That hire was an unusual situation, and really involved the opinions of the players and the concept of "running it back", rather than some penny-pinching desire to "not to dabble in the world of big-time CFB". As I pointed out, a few weeks prior to hiring Coker, we offered Butch a Top 3 college HC salary, so let's not pretend that our BOT/AD suddenly decided to "exit the world of big-time CFB" in the span of a couple of weeks. AND, Coker DID win a NC immediately. We can debate the long-term stuff, but that bald mo-fo led us to back to back National Championships (I do not acknowledge Ohio Taint's win).
Shannon, yes, he was a first-time HC. Yes, Donna believed in hiring "up-and-comers" and Randy is a UM alum. Clearly, things didn't work out, Randy's paranoid personality did him no favors. But let's not act like he didn't check every single other box besides "Head Coach at another school".
Golden...well now, this one is interesting. It is impossible to claim that we didn't interview others (cough, cough, Mullet). This is one that we can all acknowledge was a horrible failure of the "up-and-comer" model.
Richt...look, you can rip his "has-been" quality, but he was widely hailed as an excellent hire at the time. Oh, and we also interviewed Mullet again.
Diaz...I think everyone acknowledges the quick/desperation flopsweat nature of Beta Blake's hiring process.
Again, throwing money at coaches does not constitute "dabbling in the world of big-time CFB".