If you are looking for consistency in the coaching staff, I'm not sure Charlie Strong is your guy. I mean, you're kidding right? This is a guy who has demoted a coordinator DURING each of his last two seasons. Nevermind the long list of discarded position coaches. I've never seen such coaching carnage in a 3 year period in all my many years of following Texas football.
I completely agree with you but here's a devil's advocate position:
Charlie shows up, he brings his guys thinking they're good enough for the job. First year he has a veteran defense and they do...ok. Watson is horrible and the offense crashes and burns. He talks to Watson, thinks it on track.
Season two, Watson crashes and burns - Charlie chucks him overboard. Norvell does a ok job with what he has and the situation he's in. Bedford shits the bed with a freshman heavy defense. Charlie talks to Bedford.
Season three - Bedford shits the bed again, this time with mostly sophomores and over the guardrail he goes. Norvell is out in favor of Gilbert. Offense shows signs of life but still needs two liters on a canula.
All that to say - What if what we're watching is Charlie Strong doing some serious on the job learning? I mean, he obviously didn't realize he was so unprepared. He tears the program down to the studs because he thinks he's better than everyone else (obviously) and now it's just a waiting game for him to get the right coaches in place with players that get it.
What if we are watching a coach whose style is slow and methodical instead of the sharper, quicker acting coaches whose names we know (Myer, Saban, etc). In fairness though, those are cream of the crop coaches, which Charlie is not. He is what he is, and with time maybe he gets it right.
Obviously mixed in with that are position coaches leaving with no warning, or leaving for better jobs, or leaving because they're a bagman for someone. Most of that is just unpredictable anyway so we really have to look past it. It certainly wasn't the money that was the issue.
5 million to throw coaches at a dartboard is quite a bit too steep though.