Winston's comments regarding this being his first off-season without playing baseball are legitimate. Assuming he is going to be completely dedicated to football from here forward it's possible he can smooth out his mechanics if baseball isn't interfering with his motion.
The flaws most scouts see in his game, longish release and sinking of the hips, are direct results of the mechanics you have to use to be a power pitcher.
I felt like he showed some improvement there at the combine, but we'll see if he reverts to those habits once the games start.