Tennessee and Miss. St. are both in Missouri. I wouldn't just mark those off as losses. They go to Georgia, but last time they played in Georgia Missouri won that game (they lost last year at home).
I believe Georgia will win the East, I'm just not ready to write Missouri off and I wouldn't be surprised if Tennessee wins beats Georgia this weekend and has the early track on the division. Any one of the three are more than capable of being fodder for the western team in the SEC title game.