MLB Draft Preview: Scouting College Pitcher Brian Matusz

Scouting projected top-5 pick Brian Matusz.  The below excerpt is relating to a comparison between Matusz and Clayton Kershaw:

What we can also see from the above side shot is the hip and torso separation. At the end of the animation, you have two ovals highlighting each pitcher’s torso and hips once their pitching arm has reached its ready-to-throw position. Which pitcher to you looks like he has created more separation between his torso and hips? In my view, that pitcher is Kershaw.

The significance of this separation is the tension created between the pitcher’s upper body and hips; at foot plant, Kershaw’s upper body is about to uncoil fury toward home plate, bringing the arm along with it. Matusz is much less efficient with his body in being able to produce velocity.

So there is a reason why Matusz, a projectable lefty, has yet to add much velocity to his fastball while in college