I think Diaco will get another crack at being a head coach in the future, and if he can put his ego aside and be willing to delegate and work with assistants who might steal the spotlight once in a while, he'll probably be successful. If that's the case, the crazy press conferences and creative rivalries (or whatever else he comes up with) will become positives instead of negatives. Sadly, he tried to micromanage and couldn't delegate, and when it came time to revamp the staff he was too inflexible to work with Jerry Kill, and that killed Diaco's career.
I still think if he had hired an actual OC instead of a journeyman assistant like Verducci, and been willing to learn from in-game mistakes, he would have been on track to winning 7-8 games (which is now the expectation for Edsall). And if he had people on staff who could actually recruit kids with P5 offers, there would start to be a legitimate buzz in the media and all of the Civil ConFLiCT and the red pants and quotes would start tilting from national laughing stock to a success story, even snowballing nationally if - IF - he put UConn in a position to compete for a conference title.