I can see it now:

All the "talking heads" and other armchair experts out there will laud Rees for his OC acumen, citing how ND's points per game have gone up in such a short time (never mind the horrendous drop in quality on the schedule, how those numbers were high against the bad teams, terrible against elite teams, etc.), he's the next big phenom, rinse, repeat.

Some lazy MAC athletic director (let's say Bowling Green) signs him on as a head coach in 2022, and then he's gone from there after 3 years of floundering because he's learned bubkes in his time under Kelly. We'll call it the Diaco route. Or maybe the Sanford route. Or that OC whose name I can't even remember anymore because we've now had Kelly for more than a decade... ugh.