Playbooks
13 personnel puts one running back, three tight ends, and one wide receiver on the field, creating a heavy formation that reads as a run look before the snap. Defenses almost always answer with base 4-3 or 3-4 personnel and often drop a safety into the box, which means you are attacking linebackers and strong safeties with tight ends instead of nickel corners. That matchup math is the whole point: your lone receiver usually draws single coverage on the backside while wings and inline tight ends release into voids left by run-committed second level defenders.