Coach's kid is most the time the toughest kid, coach is there to break them up if they are losing. Unfortunately the coaches kid needs to play multiple positions at the same time. Just one of the many burdens they need to deal with.
LOL - when DH is AC, DD gets moved around all over the place - based on who ends up pitching which is generally the coach's DD
When he's not AC, she's usually SS.
I do find that it's pretty accurate though - though one of our nicest kids played 1st and she def wasn't tallest. She liked to high-five the girls who got on base.