I happen to coach a couple of women in track during their “off” season from soccer, do you know how hard it is to break them of the “side to side, elbows up and leading” running action that their particular soccer coaches have taught them? [The players tell me it is so when you are trying to gain possession of the ball, the opponent keeps their distance to stay away from the elbows.] My “logic” would be to teach them how to run faster/more efficiently and then they would get to the ball before the opponents.