Hi lesles4vr, thank you for your feedback. My boy and his his team performed poorly in a tournament this weekend. He and his teammates were all upset about why their cage batting success didn't translate to success during the games.
One of the many reasons was they faced much better pitchers than what they were used to from cage BP. With additional variances like outdoor weather conditions (sun, humidity, rain shows, etc.) and added peripheral visions (the whole field vs. just the tunnel), and other noises, the boys are in a "transitional" stage when they enter a more competitive environment.
A quick batting lesson from his coach, Ed Collins, confirmed that my boy needed to fix some minor mechanical issues on his swings. He did grip the bat "too tightly" and lost his flexibility to react to the pitches. But the main issues came from his "strides" and timing when he had bigger movement. The solution was to minimize the movement and simplify the mechanics. Every batter wants to connect with the balls and drive them, but it's more "efficiency" to make solid contacts instead of worrying about the power. This also holds true to pitching. Instead of trying to pitch "harder", which forces the whole body to "tense" up and loses the flexibility to generate the "torque".
I was too harsh on my boy over the weekend's tournament and I learned with him on his journey to transition to HS baseball.
"Result should NOT be the main goal. The journey in itself can be more impact-ful than the actual outcome!" - Alex