The Sun Belt is on its way to being a better conference than the MAC in football, if its not there already. And, basketball likely won't be far behind. The MAC is no longer a serious division I conference. It is just a hangers-on type conference. Until MAC school are ready to approach $20 million in athletic spending (which is very low by the way) the death spiral to the bottom will continue.
Hmmm...MAC could be stronger, no doubt. But death spiral? Well, I guess when MAC wins over Illinois, Michigan State, Purdue, Michigan, Iowa, Indiana, Kansas, Pitt, Northwestern, Colorado, Colorado State, Navy, Minnesota, Syracuse, Kentucky, etc stop coming, then perhaps death spiral will be an appropriate choice of terms.
As to football only, I wouldn't mind seeing the best of the MAC and Sun Belt form the core of a new conference.