One of my biggest growths as a hitting coach over the last 5 years is: saying less, listening more and doing more. “Trick them with drills” has been much more effective than “overwhelm them with info”.
My body weight yesterday was 181.2 upon waking, 188.6 before bed, then 181.6 again this AM. Take-home point: you're dehydrated when you wake up. In summer baseball, a lot of players have 9am games in 90+ degree weather. Coaches: get on players about hydrating early and often.