So my son has played flag football for the past couple of seasons and this year I have the privilege , of helping out. I have been put in charge of defense. Every season my son has played they typically play man to man but doing research it looks like everyone is saying zone defense is better. So I tried to do that in our first game and the team we played didn't pass very much and they just seemed to run well against us. My problem is running zone seems to just allow runs up the middle and they make a cut and seem to be gone. What can I do to fix this problem? What kind of defense should I really be running? Any help would be appreciated.