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A Defensive Coordinator is a coach responsible for a gridiron football (American Football) team's defense. Generally, the defensive coordinator and the offensive coordinator represent the second level of a team's command structure (the head coach is the first level). The defensive coordinator is usually in charge of managing all defensive players and assistant coaches, developing a defensive game plan, and calling plays for the defense during the game. The defensive coordinator typically manages multiple assistant coaches who are responsible for the various defensive positions on the team (such as defensive line, linebackers, or defensive backs).
College and professional defensive coordinators' jobs are similar, though college coaches are more involved in the recruitment process.
Some other sports that have strong delineation between offensive and defensive positions use similar coaching positions; Phil Housley, for example, served as a defensive coordinator for the National Hockey League's Nashville Predators from 2013 to 2017.
