I will also say this, his offense at UCF (the year prior to going to UT) put up a lot of points, which was impressive for a number of reasons. First, it was the "COVID year" and there was a lot of rescheduling and uncertainty, plus the depth at a G5 is not as great as it is at P5 (for when a kid would get COVID or be quarantined for contact tracing, etc.). Second, he was a first-year OC at both UCF in 2020 and UT in 2021. To walk into two situations brand-new, and then put up a ton of points in nearly every game (his worst points-totals in 2020 and 2021 came when he played UGa, Bama, Ole Miss, and the Gaytors) is an indication that he takes the talent that is already on the roster and unleashes that talent in a productive and efficient way.
I would be fine with this hire. While UCF in 2020 was not as good as the year before, it was Heupel's coaching and offensive production that got him the job at Tennessee. Just look at the points scored in all of the 2020 wins (UCF) and 2021 wins (Tennessee) and you see a bunch of games with 50 and 60 points scored. And UCF/UT lost a couple of shootouts too. Obviously two different situations (UCF playing mostly G5 schools, and UT playing mostly SEC schools), but it is a fairly impressive 2-year track record of offensive output, regardless of what the defenses at both schools allowed.
And, yes, I know that Heupel gets some/a lot of the credit too, I'm not discounting that. I'm pointing out that if Golesh meshed with Heupel for two years at two different programs, he likely has some of the same approaches to personnel and playcalling, and he may be looking for a chance to spread his wings and prove he can do it on his own.