In college, you have much more data on hitters. Coaches have a pitching plan for each batter. In between innings you look at who is up next and the chart on each girl. Batters have tendencies and if you can start to notice them, then you use that to your advantages. Some hitters hate inside/outside etc. If they hit HR's on the inside and K on outside pitches, well, its easy to call pitches. Now in travel, if you don't have the data, you MUST teach the catcher the "art" of calling pitches. Some get it real quick, others not. For example, it can pretty complex. If they have the game winning run at third. It's not always a good idea to call a drop ball. Those pitches can end up in the dirt and go to the backstop, game over. Bases loaded, full count, why call a rise ball? Rise balls rise out of the zone...ball 4, run scores. Now once they have a good idea, sure, let them go at it. But I always had my catchers be able to tell me why they called what they did! My catcher, Amanda Lahti, played for Lakota West, now starts catcher for Ohio Northern, had only to listen for like 2 weeks, she got it, and is the best pitch caller I've ever worked with. Good luck!