The "new coach bump" is absolutely legit. There are all kinds of analyses on it. It's why Narduzzi's highest-rated class also happens to be his first full one. A change/new energy can also pull donors together to produce an uptick in donations. See: Indiana, Syracuse, UNC, Colorado, etc. The water will eventually find its level again, which is why coaching changes are a strategic release of Hopeium as they are anything else.
Is the solution just to let the program rot under Narduzzi's leadership simply because we don't think we can do better? That's absolutely insane to me. As for what "better" is, well, let's define that. Because I'm not saying we're going to bring someone in who will make us a playoff contender, and I'm not even saying a new coach's best season will be better than Narduzzi's 2021 season. What I'm saying is this is the third year in a row where Narduzzi has slapped together a 6-6ish roster (a bounce here or a bad QB decision here can make a difference, but I'm saying the rosters have been about 6-6ish quality). So that's what Narduzzi is right now. AND he's trending in the wrong direction. I don't care what he did 3, 4, 5 years ago. A new coach could improve the situation right now.
Also, he's making about double what we need to be paying a coach in the salary cap era - when that comes to fruition at some point this year. Pitt will have trouble scraping up the $24M or whatever it is, so there's no need to throw $6.7M at a bonehead.