Better than Diaz but that's a low bar.
Maybe consider turning to a new chapter of Miami history and going away from someone with UM ties. We keep trying to go back to that well. Cristobal Schiano Richt Pagano Davis Shannon Coker. Always has to be someone on that list. Only dude not part of UM was Golden. So he didn't work out. Big deal. Maybe the lesson isnt that an outsider wont work, but that we need a better outsider. Also Temple is poison. Never hire one of their coaches again.
You want to reset and build a new legacy? Hire Mike Leach or Les Miles. Leach would turn Miami into the greatest show on turf. It would be a SFl sensation and is the type of spectacle that casual fans will want to watch.
Les Miles is a national champion and is a recruiting monster. He would dominate recruiting in SFl. Enormous credibility with HS coaches. Defense is near flawless. Now he believes in spread offenses.
If you really want to get out of this cycle of destruction- Leach or Miles is the solution.