The Coach is the first encounter with authority. He is strong, successful and has discipline. He expects obedience, but not submission. He wants to help the querent grow and become stronger. He is loving, but not to be messed with. He has rules and boundaries. He will protect his team.
Personal note: this is not what I experienced of coaches growing up. They were self centered, mean spirited, and small. Only one in my high school years was helpful to me, and gave some of his time to help me get healthier. This is a chance to reclaim the role