Not every coach needs to be a championship-tier coach to provide value or even be "great". Owners usually aren't happy with guys who top out at making their dysfunctional franchises respectable, but they should be. Sean should specialize in that. Come in with a 3 year plan to turn the franchise around with a transition to some executive role in football ops after that.
Unfortunately, most dysfunctional organizations are that way because of their ownership. Cleveland, and LV would make sense on paper, but ownership is a disaster.
The Commanders, Cardinals, Saints, Titans all make sense to me. Should the Panthers falter, that would be the dream fit.