The fact that the Big Least is resorting to Tulsa to try its best to stay relevant, should be a sign that the current FBS system is nearing an end, especially with the playoff system in place (and future expansion of it likely).
Structurally, the FBS is becoming FBS-A and FBS-AA. The big schools are trying so hard to get away from the ankle-biters, and rightly so.
Why would an SEC, Big Ten, Big XII, ACC, Pac-12 want teams at the table that are heavily subsidized by state funds? I know that if I were at a school generating 90-100 percent of my schools revenue, I wouldn't want to share the pie with schools that rely on 35-70 percent of athletic funding to come from the state. NCAA Athletic Budgets 2006-2011