I have a group of young pitchers stand in this position while I talk about pitching. Leg lift, weight on ball of foot, hands in middle of body, shoulders lined up at target, etc. Look for proper stride length, elbows on line to target, and eyes level and focused. Kids are smaller than the pros, and their hands can't grip the ball the same way our heros do. Release hand reaches to launch point, usually located about in front of the nose.
Body rotates and delivers arm and hand to the launch point.
These are the basic pitching positions as I understand them. But during competition, we don't want our charges to spend their time thinking. Of course, each word corresponds to one of the six positions. Finally, I like to use a variation on psychocybernetics. Have the players imagine some set of related images and see or feel them in the pitchin motion.