My younger brother's high school season just completed yesterday and is getting into his summer ball season in the next 2 weeks. Over these next 2 weeks I just want to polish some things up that I've noticed over the last 2 months. His season had its up and downs, but his downs were simply him beating himself. Not getting ahead of hitters was a big problem. He got himself into sometimes up to 6, 3-ball counts over a start, and it is demoralizing to fight back into that count and that baserunner gets on in any way.
Simply put, we wasn't get rocked and was not overmatched. His command to throw strikes wasn't there. The correction I want to make is not to hit spots; it's to get him to understand the intent and tempo he needs to have every pitch to throw the ball hard over the plate. In his last start, he struck out the side in the 4th. His intent to throw the ball by kids went way up; his fastball had to be 5 mph up from the inning before. His curveball had a different bite to it. I want him to have that every inning.
Mechanically, I wonder about his ability to throw strikes; or for what I want him to do, consistently throw the ball over the plate. I think the combination of some lower half disconnect (being front hip dominant) with some pulling glove action results in a posture disconnect. He releases the ball from a high arm slot. As his forearm gets vertical before external rotation, his trunk pulls hard to his glove side. Is that a disconnect or is that his body making way for his over-the-top arm slot? He windmills a bit, and could get more forward rotation or late launch.
I want to lose the postural disconnect. Improving his lower half, mainly through better tempo and making him aware of how he could move his glove side more efficiently should help the disconnects before release. I want him to forwardly rotate into the plate, not into the first base dugout.
How do I make this correction?