So my sister plays for the local high school. Shes a freshman and has played about 3 years on and off. Shes pretty small for her age, probably 5'3'' 100lbs. She likes to play baseline, im not sure she knows how to do anything else. She is trying to challenge her way up the ranks. Its her first season playing and shes moved up from 16th to 9th in a month. Now it seems she has hit a road block. The number 8 girl is the worst pusher I have ever seen. She never hits a ball past the service box unless she has to. When she brings you to the net she lobs you. My sister is not a mobile person, like most of the girls on the tennis team. Running isnt their thing. So Ive been trying to help her beat this girl because the 7th ranked girl isnt as good as my sister either, they just have been coached and both girls are seniors. I told my sister to bring the pusher girl to net with a drop shot. It seems my sister doent now how to slice a ball so this could be tough. She has been taught how to hit a topspin forehand and everytime I hit her a ball she takes the racquet back low. I dont think she even knows why she takes it back low, she was just told to. She doesnt understand that you have to take the racquet back higher than the ball to hit a slice, or a drop shot. Then I told her to hit short shots and the lobs to move this pusher around but watching my sister play is aggravating. She seems to always go back to autopilot, hitting from the baseline. Any thoughts?