Could someone explain to me why so many coaches, including Andy Toole, despise zone defense? It seems as though many coaches believe that man-to-man is the only proper way to play the game. To Coach Toole's credit, he has shown his flexibility by switching to zone the past few games, although apparently out of frustration or desperation, since his usual defensive system was not working this year either because his current players were not executing properly, or the rule changes have made it more difficult, or a combination of both. Even though, I believe Toole made a comment that having his team play zone makes his stomach very uncomfortable. It seems to me that often when I see teams playing zone, it's often quite effective. What's so bad abut zone defense?