I concur with Riseball. Tread lightly with your #1 pitcher or next week she will be another team's #1 pitcher. The OP says that they have been practicing every week since January, but you get a little twisted when your #1 pitcher attends a lesson rather than practice. If she misses practices regularly, then a conversation with the parents needs to be had. She didn't skip practice due to another sport, a birthday party, dance recital, etc. IMO this is no big deal. You should be happy that she is trying to get better, to make the team better. My past pitchers sometimes would get an extra lesson in before a tourney to work on something specific on mechanics or to tweak something in their delivery. It's okay.
Side Rant: It is beyond me how the catchers get less attention in team practices than other infield positions. DD is a catcher that requires additional outside workouts beyond normal practices too. She played SS the other night and had NO balls hit to her the entire game. But when she catches, she touches the ball nearly every play....done.
Great point! In addition to developing pitchers, I spend a great deal of time developing catchers. Without a great catcher, your pitcher cannot excel! Come game day my AC's handle the offense, and on defense on has the IF the other the OF which leaves me to work with the battery. Works extremely well.