Hopefully all of the posters that are clamoring for change in HC (honestly, I have no attachment to Fran, so do what you want) are wiling to open up your pocket books and donate money so the next coach has NIL money to attract the players you want. As easy as some posters think it is to "just go to the portal", you're not going to go to the portal and get the top players in the portal without having that NIL available.
Outside of Lute Olson, the only time Iowa brought in a top class what George Raveling and the Iowa fan base couldn't wait for him to be gone. Tom Davis didn't "get us to the next level", so he had to go, which brought in the Steve Alford era. I think we can admit, those weren't glory years, which led us to Lickliter (the reigning COY), which was a completely different style than Alford and an unmitigated train wreck.
For many years, the fans were appreciative of Fran to have Iowa respectable and somewhat relevant in the Big Ten. Last year's team didn't meet expectations ... would healthy versions of Nunge and Frederick have made a difference? Hindsight is 20/20 and it's a difficult question to answer. This year's team has been better than the expectations that most reasonable people had. The non-conference schedule was very soft (by design), which was a good move for a team replacing 4 guys that were starters last year (3 that weren't expected to be gone).
I get that fans and fan bases get fatigued of having the same coach over the years. Firing the coach is always an easy step to take. The unknown is what you are going to get to replace and it's a roll of the dice.