DD2 started pitching 11 weeks ago. She has been working on location with me. She asks me to call a corner for her fastball. She will get the ball within the general area I am calling, her high and outside pitch looks high and outside, and not any other corner, though she is not consistently hitting the strike zone. No surprise there. She will probably not get her next pitching lesson for two weeks. Is there any skill or drill I can suggest for her to do to improve her accuracy, other than just keep on practicing?