Interesting question, I have no idea how it affects all sports, but I do know most extraneous baseball/softball is in the summer with some fall ball but there is a definite "dead period" before the start of the season so you never run into these issues of unknowingly ahve a il/quasi/legal practices happening in these sports. As for track, in the fall there is cross country so their sport is always in season (no one does field out of season for obvious reasons).
