Our HS has team captains but it has noting to do with leadership skills. I am not sure of the criteria the coach chooses but it has usually been a bad thing. Many girls are just too mean to each other at this age. I like it when they are all equals, we never have captains during the summer. I rarely send a player out for the pregame unless it happnes to be an injured one that cannot play. Sometimes, usually if it is a championship game, I will send the whole team.