Based on what I have seen so far, I think the Aggies are probably at about the same level as MSU right now (tied for 4 in the league). If Auburn cant be what they did today, they cant beat anyone in the conference (Ole Miss and Vandy included).
Mizzou is probably third in the East behind UGA and SoCarolina.
Bottom line though, if these teams want to really compete in the SEC, they are going have to build teams that can play in the SEC in the 4th Qtr. Both teams were completely spent once the 4th Qtr started as a result of the physical play.