atomictissue

I am a patrol leader in my troop, but I have a patrol member who happens to also be an ASPL. Because of this, he thinks he doesn't have to listen to me, and even tries to tell me what I need to be doing when I ask him to do a task for the patrol. I have tried sitting down with him and explaining that he does have a position of authority, but that it does not mean that he "outranks" me or does not need to listen. I don't know what to do.