I don't believe it's sustainable with Jameis but I also don't believe I've seen much of anything from Carr thus far that makes me believe he can find sustained success with us either. Not with this coaching staff we have anyway.
Our coaching staff can't coach Carr up (and throws receivers under the bus on his behalf), can't rein Jameis in (Payton proved it's possible), and doesn't know how to use Taysom or flat out just doesn't want to.