He has Cy Young stuff. His approach and trust in his stuff has been huge this year, and he is learning how to pitch to major league hitters. Roger McDowell doesn't hue either, he is one of the best in the business.
Why not? He has a great sense of the strike zone, is patient, has great speed, has dropped his K% significantly this year, and can focus on what he does best on offense. I doubt he will be but he can definitely do it if the Braves and Jason commit to it.