This will hold true, here. Mullen will not be wearing Tennessee Orange next year:
Why He Won't
Is Tennessee really that big of an upgrade over Mississippi State? A move to Tennessee would still be pitting Mullen against Saban every year, so that doesn't help.
Furthermore, he's got a good thing going at Mississippi State. He's had a winning season every year but his first there, and a school that's used to being the doormat is probably going to be a lot more patient than a place like Tennessee.
I just don't see Mullen leaving an SEC program that's doing well for an SEC program that isn't doing so well, when it's all said and done.