I know at my child's club, U10 is a combo of some U8's, U9's and U10's. Once they get to U11, that is the only age group and it has it's own coaches. Sometimes some of the coaches carry more than 1 U13 age group. Depends on your club. Look at the current u11's at your club and see who is coaching them now. Doesn't mean that they will stay the same come next year though.