He certainly isn't the Saban/Meyer/Sweeney class and I don't think he is in the D'Antonio/Harbaugh/Richt level either, but he has won a national championship as a coach, something only 3 other active coaches have done (those 1st 3).
He has a much better chance at winning another title at FSU then he does at A&M though. Just seems like a really strange move.