I am not advocating the firing of Narduzzi but keeping him also will not end the mediocrity. 10 years has proven that. Replacing him with the best possible candidate will yield worst, better or the same results. At least there is a chance for better. The question is whether the new powers that be are satisfied maintaining the status quo.
That's a HUGE assumption on your part. There is absolutely a chance, and a very good one, that Pitt will do worse.
There is no coaching change that can be made to end the mediocrity at Pitt. There is only one way possible to break that cycle. Start bringing in elite recruiting classes - both HS & portal talent. Recruiting has to be on par with Miami, Alabama, Georgia, tOSU, Oregon, Texas, etc.
If you can't even get your talent level on par with those schools, then you're only in the sport for shits & giggles and to take pride in some level of mediocrity. Pitt doesn't seem to have a donor base that is interested in making that happen.