Needs to be a 4 division system, idk how else you make even schedules. I would even be for the NFL system where you play the 3 in your division twice, and then 1 from each other division based on last year's record.
Naw, I still like my very own three pod solution....(short version)
Add two teams to get to 18
Have 3 6 team pods
Play your 5 and have a two year rotation with 2 teams from both other divisions for 9 games (complete cycle in 6 years)
The 3 pod winners and the highest ranked non winner into semis, then SECC game
As fair as it can get with luck of the draw on cross pod strength.
FL,GA,SC,KY,TN, (ADD #1) EASTERN TIME ZONE
AL,AU,OM,MSU,LSU,VAN CENTRAL TIME ZONE EAST OF MISSISSIPI RIVER
TX,TAM,OK,MIZZ,ARK, (ADD# 2) CENTRAL TIME ZONE WEST OF RIVER.
Pick monetary and TV map compatible that provide pod balance with both additions... I would like a NC team for East and ??? map friendly for the West. Travel friendly as it can get and aligns MOST natural rivalries. We would have to give up Vandy and GA AU would be a hit. Pair up balanced two team pairs from each division for rotation, nobody gets GA and FL or AL and LSU.
As clean as it gets I think.