How the coaching process works to improve your tennis skills:
First, discuss you current skill level, the areas that you want to improve with the coach. If you have a recorded video of your play, then share with the coach. Then the coach will give you advises to improve your skill, and you can practice for a few days or longer. And your coach may schedule a live meet on court on a later date, 1) to check your progress, 2) to give you crucial live instructions.