So what you believe is, one could not do any strengthening of the triceps and wrist muscles, and still be able to maintain arm speed? I guess you have never coached sports, specifically...baseball and or football.
Strength of certain muscles have a direct affect on velocity, and ability to throw a ball a given distance with adequate velocity. I can throw a football 10 yards, just like Drew. But my lack of arm strength, does not allow me to throw the ball with the velocity of Drew.