For now, CUSA has more to offer, as does the MWC. With both conferences coming into WAC territory offering memberships at roughly the same time, there'll be little the WAC can do but watch members move on one-by-one to better pastures. Any rebuilding they do will still reduce them to "Sun Belt - West" status, with schools that have the least amount of revenue generating capacity.
This is the key...
CUSA currently has more to offer (read bowl tie-ins in football) than the other conferences.
Marshall and UCF could move here even though this is somewhat of a lateral transfer due to bowl opportunities. UCF more likely, because Marshall may see themselves as a virtual lock for one of the existing MAC bowls regardless of whether they win the conference. A move by Marshall and/or UCF will help to "save" the WAC!
If not, this means CUSA has to go to eastern WAC or the Belt to maintain, and the BEST teams are in the WAC currently.
Worst case for the WAC...
SMU, Rice and Tulsa leave. La Tech is a distant fourth option.
At the same time MWC grabs Fresno, Boise, and maybe Hawaii and Nevada...
Where does this leave the WAC...
San Jose (struggling) and
maybe LaTech, Hawaii, and/or Nevada
That is not much of a conference.
If I'm the WAC commish I'm a little uneasy right about now. Shoulda brought in Utah State and New Mexico St. when they had the chance!
I'm with Gunner...WAC is doomed without some luck or quick movement to raid the BELT (reconfigure with the Western BELT schools and hope that the damage is small enough so you can get back to eight institutions)