Two divisions of 10 teams aligned by geographical region, which would save cost and travel for both football and non-football sports. Improved academic affiliation for all schools. This would require the ACC to be proactive and raid the B1G and get Notre Dame, versus sit idle.
The North
BC
Maryland
Michigan
Michigan State
Notre Dame
Ohio State
Pitt
Penn State
Syracuse
Virginia Tech
The South
Clemson
Duke
FSU
GT
Louisville
Miami
NC State
UNC
Virginia
Wake
This would allow 9 division games; 1 interconference game, and two OOC (for Notre Dame to still schedule Navy, USC, etc.). Logistically and financially this would provide security to rival the SEC.
The North
BC
Maryland
Michigan
Michigan State
Notre Dame
Ohio State
Pitt
Penn State
Syracuse
Virginia Tech
The South
Clemson
Duke
FSU
GT
Louisville
Miami
NC State
UNC
Virginia
Wake
This would allow 9 division games; 1 interconference game, and two OOC (for Notre Dame to still schedule Navy, USC, etc.). Logistically and financially this would provide security to rival the SEC.