Basketball Clinic

I have been asked by some of the members in my town to create and run a basketball clinic for girls in elementary and middle school. I want to use this to work on both their skills, plays, and teamwork. The challenge I am having though is that every year they get a new coach, so they never hav anything stable. Also, I have nothing to build off of from previous years. I was wondering if anyone has some suggestions on what I can work on thorughout the clinic. This is a great group of girls, and I would really like to help them out the best I can. So, if anyone can help me, please let me know!!!