Not sure, giving yellow cards for abuse doesnt seem to have the desired effect. Players still do it, get yellowed and then get sent off. sin binning a player for abuse of officials punsihes the team and the fans more than it does the offending player for mine. The punishment needs to be two fold. If you are going to send the offending playuer off, then the manager should be able to replace them, then you fine the offending player so hard that it hurts. Not just a match fee or something small in the scheme of things but a months wages or higher. Then the players will seriously think about doing it again.
Article picked up by stuff.
https://www.stuff.co.nz/sport/football/301017040/football-to-trial-rugbystyle-sinbins-with-introduction-of-orange-card
Article picked up by stuff.
https://www.stuff.co.nz/sport/football/301017040/football-to-trial-rugbystyle-sinbins-with-introduction-of-orange-card