It's important to remember that you only have one opportunity to truly hire from within in a scenario like this, and it is imperative not to catastrophically damage the alumni, ex-player and booster support of the program.
I 100% understand the desire to hire from outside. One can make a very compelling case why that's the route we should take.
On the other hand, it is highly likely a hire like that will alienate a large portion of the folks I mentioned. And if that guy doesn't succeed immediately, there's no stuffing the genie of discontent back in the bottle.
If Autry fails then you can tell those folks that we tried, it didn't work, and now we gotta go outside the family. I don't worry at all about the program becoming unsalvageable. A couple bad years won't erase all of the advantages this program has.
Like I said, you can find fault with an internal hire. But you can't ignore the ramifications of going outside either. Both have downsides.