I would like to know if there is a package where I can start with my players completely from the beginning. New starters, never played tennis before. I'm also new in coaching tennis, therefore need to learn how to set out a tennis session and how much to do in one session. How to structure the sessions to incorporate all the shots: forehand, backhand, serve, volley etc over how long a time. And also need to know how long a tennis session must be for beginners. How big the group can be to be most effective?