Good article on the subject in Slate, from 2007: "The NFL's Perplexing Refusal To Help Fans Understand the Game" http://www.slate.com/articles/sports/sports_nu

Good article on the subject in Slate, from 2007: "The NFL's Perplexing Refusal To Help Fans Understand the Game" http://www.slate.com/articles/sports/sports_nut/features/2007/how_to_watch_pro_football/the_nfls_perplexing_refusal_to_help_fans_understand_the_game.html http://www.slate.com/articles/sports/sports_nut/features/200... A bit more from Football Outsiders: http://www.footballoutsiders.com/walkthrough/2006/too-deep-zone-big-jaworski http://www.footballoutsiders.com/walkthrough/2006/too-deep-z...