Kopech needs to show White Sox pitching coach Don Cooper that he can locate his fastball where it needs to be thrown.
Kopech has been putting maximum effort into every pitch, probably trying to impress his new club, but straight 100 mph fastballs that catch too much of the plate or are way outside the zone won't play in MLB. "Some guys can throw it 95," Cooper said. "Some guys throw it 85. It has to do with throwing the ball to the glove with movement." As legendary as Kopech's fastball has become, there's a lot of wildness in his game -- he walked 33 batters in 56.1 innings last season. The organization will beat the message into the right-hander that he can dial back the velocity and throw to his spots, and still be effective.