The problem with all of this is perception, and that falls right at the feet of BK. The best move BK has ever done at ND was to hire Elko (who was a known DC quantity). Save for 2015, the best seasons ND has had was driven by defense. The offense, especially in big games, has historically been an issue for BK. It's the whole "wheels come off" thing. So with that in mind, it's easy to see why everyone is skeptical of the situation. For ND to take the next step, they need the offense to be better. I know the last games of 2019 were better, but that still doesn't take away the stink of the night in AA. Right or wrong, people think Tommy = BK's system, which has failed on the biggest stages at ND.
Rees could be the next coaching star, or he could be a huge bust. I don't know. But I think the perception surrounding the potential hire has everything to do with BK's history at ND instead of the last games of 2019.
Also, using Coach O is not a real good comparison IMO. For one, coach O had a history at Ole Miss and flopped big time. Second, when you are the coach of USC, you have to be someone other than a bumblin Canjun. It works at LSU, it doesn't work in LA. Finally, it's not like LSU snatched him up the moment he left LA. Nobody wanted him. The dude was out of football and went from interim HC at USC to nothing, not even a position coach the following year. And he was begging to come back. After serving as DL coach for LSU, he got his shot and has made the most of it. But I will wait and see what happens once Burrow is gone and Brady is gone (most likely to the NFL). I'm personally do not think this has staying power. His previous two versions of LSU teams were very similar to Miles.