Maybe some day down the road all conferences will want 16 teams with four quads.
Pacific Athletic Conference (PAC)
California: USC, Cal, Stanford, UCLA
Desert: UNLV, Arizona, Arizona St., New Mexico
Mountain: Colorado, Utah, Nevada, Washington St.
Coastal: Oregon, Oregon St., Washington, Hawaii (they are so far away it doesn't matter which zone)
Big XVI Conference
Mountain: BYU, Air Force, Boise St., Fresno St.
Heartland: Kansas, Kansas St. Colorado St., Iowa St.
Southwest: Texas, Texas Tech, UTEP, TCU
South: Oklahoma St., Oklahoma, Baylor, Houston
Dixie: Alabama, Auburn, Georgia, Mississippi St.
Atlantic: Florida State, Florida, Miami
Boone: West Virginia, Kentucky, Memphis, Tennessee
Bayou: LSU, Texas A&M, Arkansas, Ole Miss
Big Territorially Expanding Northerners
North: Michigan, Minnesota, Wisconsin, Michigan St.
Chicago: Notre Dame, Northwestern, Illinois, Iowa
The Ohio: Ohio State, Louisville, Indiana, Cincinnati
Coal: Penn State, West Virginia, Pitt, Purdue (Boilermakers of course go in the coal division, regardless of geography)
Atlantic Coast Conference
Northeast: Boston College, Connecticut, Army, Syracuse
Mid-Atlantic: Rutgers, Maryland, Navy, Virginia
Carolina: North Carolina, NC St., Clemson, South Carolina
Atlantic: Wake, Duke, Vanderbilt, Va. Tech
After all is said and done, the rest join forces, or go FCS:
Southeast: UCF, USF, ECU, Southern Miss
Southwest: SMU, TCU, Tulsa, North Texas
Northeast: Marshall, Miami (OH), Northern Illinois, Bowling Green (I like their colors...)
Western: Wyoming, SDSU, Idaho, Montana (FBS upgrade)
That gives you 6 conferences with 96 total teams. 8-team playoffs would be played with all the champions and 2 at large berths.
1. Pacific Athletic Conference (PAC)
2. Big XVI Conference
3. Big Territorially Expanding Northerners (Big TEN)
4. Southeastern Conference
5. Atlantic Coast Conference