It is really cool to see a young man trying to give back to the community and the game! Creating a YouTube channel for pitching will bring value to many who may not have the resources to secure professional instruction.
Feedback for improvement:
1) Watch a few YouTube videos on Camera presence. He does a great job of showing enthusiasm, but some thought should go into the viewer's experience as well. Meaning, all the unnecessary movement takes away from the viewer's ability to focus on the content. Not saying to avoid movement totally, but maybe tone it down some. Watch the YouTube influencers and you will see they do create enthusiasm, but not to the point where the viewers become over stimulated and click off of their channel.
2) Content is king! Coming up with enough content to keep the channel interesting and relevant is a challenge for most YouTubers. He may wish to reach out to some of the power pitching facilities such as TBR, FBR and DriveLine and see if they would be interested in helping him with content for his channel. Be advised that they do not subscribe to the "balance point" method the young man is teaching so be prepared for a different point of view. I believe Randy from FBR and Kyle from DriveLine are consultants for certain MLB organizations and it would be a huge credibility boost to his channel if he ends up doing a collaboration video with one of those guys.
Keep up the good work and I wish you tremendous success with your channel!