It's easy for Brian Kelly/LSU to be in favor of a 9+1(B1G) situation.
Would Florida, Georgia, South Carolina and Kentucky be as agreeable? Because in that scenario, their options are to play both a B1G opponent and their ACC in-state rival (11 P4 games!!!) or to jettison the long-standing rivalry in favor of a mid-major (whew, 10 P4 games).
The middle ground would be:
*SEC plays 9 conference games.
*ACC plays 9 conference games (they still play 8, but nobody seems to care).
*SEC/B1G make a 10th game agreement, with the exception of in-state rivalries against another P4 (e.g., UF/FSU; GA/GT; SC/Clem; UK/LOU; CyHawk; Bedlam; Civil War; Apple Cup). The rest pair off as needed.