Its a smart financial move for TCU to go to the Big East. Obviously I think most would agree that it is a side-step or downgrade competitively. Even without Utah and BYU the Mountain West is more top-heavy than the Big East. TCU and Boise would have provided annual drama, plus the Fresno State, San Diego State, Air Force, Nevada and presumably Hawaii contingent would have been quite nice.
Expect the Mountain West Conference to seek out Houston, Utah State and possibly Montana (though this is unlikely given the University President's thoughtful reasoning against moving from FCS to FBS). If the MWC were willing to add Montana State (currently another top FCS program but without the finances or stadium to really warrant a heavy look, unlike the Grizz), then that may alleviate some of the current downsides for the Grizzlies to move to FBS.
It would be very interesting to see a conference of:
Boise State
Fresno State
Nevada
San Diego State
Houston
Air Force
Hawaii
Plus:
Montana
Montana State?? (tie together the two Montana schools for logistical and to satisfy State Legislature reasons)
UNLV
Colorado State
Wyoming
New Mexico
Utah State??
Obviously, I don't think its wise to get to 14 teams for the conference. 12 is a smart move, but its getting the best 3 teams given their current 9 team outlook. Does Houston, Hawaii and Utah State cover that? Or will it be Montana, Montana State and Hawaii? I don't know really... I'm thoroughly intrigued though.
If they want to add as many markets as possible however, I think that this 14 school look would be highly competitive for a major boost in finances/contracts with ESPN and Fox Sports.
The conference stays in Texas (with another similar small school, but with some decent research output!!), they are in California, Colorado, New Mexico, Montana, Utah (Utah State is the #2 LDS school in the region, a big potential market) plus Hawaii and Wyoming... A very interesting outlook.