Really nice read.
http://articles.philly.com/1994-01-27/sports/25823441_1_defensive-scheme-college-defense-coverage
"The Cowboys' defensive scheme is one of the most uncomplicated in the NFL. They employ a basic 4-3 alignment with a lot of deep zone coverage and very little blitzing. They keep the game in front of them and use their speed to run to the football."
http://articles.philly.com/1994-01-27/sports/25823441_1_defensive-scheme-college-defense-coverage
"The Cowboys' defensive scheme is one of the most uncomplicated in the NFL. They employ a basic 4-3 alignment with a lot of deep zone coverage and very little blitzing. They keep the game in front of them and use their speed to run to the football."