in theory the card system is good, the implementation will be impossible because there is no league or governing body like football or soccer that has leagues and penalization ramification caught, on the older teams, 9th, 10th and 11th grade you have an additional problem of kids playing on travel kids also playing on their HS summer team and the conflicts,when a travel team is short because 5 or 6 kids have to play for the town team that weekend, some teams take non roster players just to have enough kids not for ringers, Outlaws 2015 went through this last year at UMass. lacrosse is expensive enough, this will ad another expense to create and administer and we don't need it.