Little Johnny is nine. He’s playing his first year in kid pitch. Although Little Johnny is small, he has a canon for an arm. His coach and dad are both excited for him to pitch. So is Johnny. Johnny is so excited that he sometimes rushes his delivery trying to throw the ball extra hard. His coach sees this and tells Johnny to stay back and to reach back. Little Johnny is a good listener. He stays back. He reaches back. Little Johnny reaches back so far that his arm is behind his back. His hand is under the ball. Little Johnny’s dad notices that this isn’t how he used to throw but he is doing well so he doesn’t say anything. He leaves it alone. Little Johnny does well for two seasons. He only gives up one hit in each season but he does have occasional bouts of wildness. Little Johnny is now 11. Little Johnny starts to play travel ball. He has a new coach. He tries Johnny at shortstop. He is a good fielder. His throwing motion is very long but the throws are very strong. He has Little Johnny pitch. He is fast, very fast. Little Johnny’s coach notices that Little Johnny reaches behind his back and his hand is under the ball. He takes some video of Little Johnny. He compares it to video of many pitchers. He sees that very few top level pitchers have their hand under the ball. He notices that Little Johnny does not have his arm in the high cock position at foot plant. He feels that Little Johnny’s arm timing is behind his body. Little Johnny has never had any arm pain at all and Little Johnny’s coach is reluctant to change his “natural arm action”.
What should the coach do?