No, we need to recreate the old Skyline Conference:
Colorado
Colorado State
Utah
Utah State
BYU
Wyoming
New Mexico
Get Arizona and Arizona State from the Pac Ten
throw in Air Force, Boise State, and UTEP.
With Utah, BYU, Boise State, CU, and ASU you could gain automatic BCS access. With Utah State, CSU, Wyoming, UTEP as a "lower tier" the "upper tier" teams should always have good records. You don't want to do what the ACC did and have 12 (OK 11, sorry Duke) schools that are all beating each other up every week. The "mid tier" of Arizona, Air Force, New Mexico are all solid programs that would lend respect to the conference.
Hawaii and Fresno State jump in to the Pac Ten to make it 10 again.
San Diego State and UNLV go back to the WAC, with Montana making the jump so they have 8 schools.
and TCU replaces Colorado in the Big XII (but in the South Division) with Oklahoma moving to the North Division to renew OU-Braska rivalry and balance the league.