The main concept is "FarmFright." Funny alliteration on the fact that LSU is going to scare the hell out of A&M in October. You could also use the phrase "Should have stayed on the farm" for the back of the shirt.
"They are an awesome, aren't they?"
(Also keep in mind that LSU is an A&M school also.)
I like the concept, but from the wording and layout it's not clear which team should've stayed on the farm. Maybe change it to "A&M shoudl've stayed on the farm"?