If the SEC did expand to 16 with OU and FSU, I thought a nine game conference schedule with 3 yearly rivals could work. Every team would play one another every other year.

What do you think about these yearly rivals?
Ala: Aub, Tenn, LSU
Ark: aTm, OU, Mizz
Aub: Ala, UGa, FSU
UF: FSU, UGa, Tenn
FSU: UF, Aub, USC
UGa: Aub, FL, USC
UK: V, Tenn, MSU
LSU: Ala, aTm, Ole
MSU: Ole, V, UK
Mizz: Ark, OU, USC
Ole: MSU, V, LSU
OU: Ark, Mizz, aTm
Tenn: Ala, UF, UK
aTm: Ark, LSU, OU
V: UK, Ole, MSU

In this attempt, I kept the very important rivalries intact. Some of the lesser rivalries were altered to accomodate the new members and try and grow new ones. Now, if too many are unhappy that they can't get to play certain teams every year, having 4 or 5 yearly rivals still results in cycling through everyone every three years with 9 conference games.