Zone built properly is a lethal defense, especially knowing the right positioning ... better my ***! Just kidding around Trenton, don't get agitated, lol. Evenly matched teams that are built suited for the type of D being run is dead even., FCP causes mayhem and choas and the zone is just controlled frustration. Personal preference, do you want to test the waters with chaos ... then make the switch, and own face. Just a short stock of zone coaches who build proper zone programs against the mass loads of hall of famers who run man or FCP