Obviously Vandy and SC are in the books as Ws, so that's a 2-0 start. That leaves 10 other games that have to go the SEC's way. Even with a really easy slate, that would be a tough buy.
Looking at the list, though these should be the sure wins:
LSU over App. State
Florida over Hawaii
Georgia over Georgia Southern
Auburn over ULM
Arkansas over Western Illinois
Those are all either games against 1-AA teams or lines of 25+ points.
The other 5 games are:
MSU - La. Tech
Memphis - Ole Miss
Alabama - Clemson
Kentucky - Louisville
UCLA - Tennessee
The biggest favorites in that group are MSU and Ole Miss, both at around 8 points. None of those games are locks. With 5 games that could go either way, I have a hard time buying a 12-0 weekend. I'm betting on 10-2.