The last SEC team to finish outside of the top three in the conference in rushing and win the SEC title was Auburn in 2004. Mississippi State is currently third in the league in rushing, and certainly looks like it has the personnel to keep the production at a high level.
http://www.southernpigskin.com/sec/rushing-towards-contention/
http://www.southernpigskin.com/sec/rushing-towards-contention/