The next coach will most likely be mediocre too because that’s how most NFL coaches turn out. There will probably be 8-10 new coaches this offseason. And another 8-10 the following year. And so on.
But the current path does not seem sustainable so at some point soon we will be one of those 8-10 teams that rolls the dice.
But also note that the Saints last 2 reboots led to 1) their first playoff win, and then 2) a decade plus of winning and a SB.