They cover the player that comes into the zone. This is a new style of defense. Defenses use a zone blitz to trick the offense on how they will play the pass and who is going to blitz . Play calling . Setting up the offense in a certain formation does not mean they will pass or run.
Teams have many different plays for each formation.
The offensive coaches try to make the defensive coaches guess what play is going to be run. Coaching Strategy Teams have scouted their opponents and look for tendencies in their play calling and what they do in certain situations. For example if a team always passes on second and ten, then the defensive coaches would call a pass defense. Each defensive segment coach scouts their opponent to look for ways of beating them in a specific defense. The line coach watch's for the way the offensive line blocks.