https://footballadvantage.com/zero-blitz/A
Zero Blitz is a type of blitz that defensive coaches can call to disrupt an offense.
It's considered the riskiest of all the blitz packages, because there is no extra coverage on top of the defense.
In other words, every defender who isn't matched up with an individual on the offensive team will blitz.
Their only job is to get in the backfield as quickly as possible and get to the ball carrier -- whether that be a quarterback or a running back.
During a Zero Blitz call, each defensive lineman matches up with an offensive lineman whom he must gobble up.
Each cornerback matches up with a wide receiver. If there is one running back in the backfield, he will most likely be the responsibility of the Mike linebacker.
If there is one tight end on the field, the Sam linebacker will be responsible for covering him.
If there are two tight ends, then both the Sam and Will linebackers will cover the tight ends.
Meanwhile, every player without a specific assignment will be blitzing.
