I think barring a major injury or some freak display of improvement by Tanner, Taysom is the guy. The spring competition is a "formality", and Tanner's only hope is that he is good enough to win the Heisman and/or Taysom gets injured.
If not, I figure Taysom would have been long gone to a school who could showcase his talents.
So I think he's either going to be QB, injured, or at another school.