Every year, Coach Jenkins takes his middle school softball players to a ropes course to participate in a series of team building exercises.

Every year, Coach Jenkins takes his middle school softball players to a ropes course to participate in a series of team building exercises. This year the players are instructed to stand on and balance a giant seesaw as a group. The first group to attempt the activity consists of 9 players of varying sizes. Without weighing themselves or taking any other measurements, how could the girls use their superior knowledge of torque generation to complete the task successfully?