Back during the post Big East expanion aftermath of the early 2000's, the CUSA and WAC were fighting for the same teams. CUSA wanted SMU, Rice, and Tulsa, while the WAC wanted Tulane and Houston. CUSA won this battle which led to the WAC admitting Idaho, New Mexico St, and Utah St, and leaving La Tech as an isolated eastern outpost. What would have happened if the WAC would have won this battle and Tulane and Houston went westward?
San Jose St.
It is a very interesting scenario, but one with a few problems. CUSA had the better TV contracts and offered the privates more opportunities to be on TV as their games starter 1-2 hours earlier. Rice, SMU, and Tulsa were bleeding in the WAC. Tulsa and Houston were bleeding in CUSA. I think there was really only one way this move could go.
A split conference would have been a big help, but frankly If I were Hawaii or SD state, I'd be worried about a breakaway SWC leaving them in even worse shape.
+ UNT or TCU
I suspect that, and their general disdain for large conference scheduling, is why they didn't make this happen.