I am assuming that you are not a certified teacher. If that is the case, there is such a thing as a provisional teaching certificate that will allow you to teach for a couple of few years and go to school at the same time to acquire your teaching credentials. I have heard of more than one guy around the metro area who is a strength coach at a local high school and does not teach there, I guess he would be considered a community coach. I guess it is pretty obvious that this is not the best situation, being that you will not be able to coach your kids throughout the school year, only in the summers and holidays. If it is really what you want to do, you will most likely have to go back to school and earn your certificate. I would go around to some local high schools and offer up your services and see where it leads you. Hope this helps.