"The philosophy of the organization is to encourage pitchers to develop a good delivery, command of their fastball, an off-speed pitch and a good breaking ball," Duquette said. "The first breaking ball that we work with our young pitchers on is a curveball. So that is basically the level of progression of our instruction and our organization philosophy.
"First of all, the cut fastball, we don't like it as a pitch, OK? And we don't like it for young pitchers because it takes away from the development of their curveball, which is a better pitch long-term and also, the velocity of their fastball. So we encourage development of an overhand breaking ball that has depth along with command of their fastball and, of course, velocity and movement will get the hitter out."
A little late posting this, but I wanted to hear some discussion on this topic.

