When DD was younger I set up cones in the outfield as a goal. As she got older the cones were no longer necessary. I agree that the external cue is often more effective. Interesting though, is that she is becoming more in tune with internal cues now. Perhaps her exposure to anatomy and kinesiology classes.That’s survival mode imo. If you want her to let the inside pitch get deep, that’s ok. Ask for it to be hit UTM then. Oppo approach is fine.
Just give her goals. External goals. Hit inside ‘here’. Hit outside ‘here’. If you want her to let it get deep use CF and RF. If you want her to be ultra aggressive use LF and CF as goals. Kids respond better to external cues imo.
Tell her if she gets them all right or most right, in the right spots she gets an after practice ice cream cone. Still do that w mine and she’s 19. Although it’s turned into Starbucks not ice cream.
DD is 20 and also prefers Starbucks to ice cream I'm curious what she will choose when she hits 21...