Playbooks

Overload Blitz brings a heavy rush to one side of the formation, stacking four rushers (two down linemen and two blitzing defenders shown converging with arrows pointing down and in) to overwhelm the protection on the strong side while leaving only three underneath defenders and two deep safeties to cover the rest of the field. The blocking numbers are shifted so the offense is outnumbered at the point of attack, creating a natural free rusher if the offensive line slides the wrong way. This is a blitz package designed to blow up the pocket quickly rather than a coverage-based zone or man beater, so the primary read is presnap: identify which gap or edge is overloaded and confirm your rush lanes before the snap so all four rushers hit at staggered depths and collapse the pocket before the quarterback can climb or reset his feet.
Presnap, look at the running back and tight end alignment to see if they are declared as blockers on the overload side, if they are not you have a free rusher. Watch the offensive line's protection slide at the snap, if they slide away from the overload you get an unblocked rusher immediately. This blitz is most effective against man protection schemes and gets shut down hard by max protect or six man protection with a back chipping the overload side. Post snap, key on any user controlled linebacker or safety dropping into a lurk spot underneath, since the light coverage behind this blitz is vulnerable to hot routes and quick outs if the rush does not get home in time. If the quarterback audibles to a screen or quick game concept presnap, this blitz will not have time to affect the throw, so be ready to peel off with underneath defenders if you read screen action.
Use this on third and long or two minute situations where the offense is likely to max protect and hold blockers in, since the overload numbers advantage will still generate pressure even against extra protection.
Check the offensive formation presnap for the running back's alignment, if he lines up away from the overload side you have a numbers advantage with no one to pick up the extra rusher.
Pair this with Cover 1 Robber or Mike SS 1 Dog from the same set so quarterbacks cannot key blitz tells off safety depth or linebacker walk ups.
Bring the overload to the tight end or running back's side of the formation to force a blocker to stay in and declare protection, which opens up your coverage math elsewhere.
Avoid calling this against empty backfield sets or quick game concepts since the extra rushers will not have time to affect a three step drop before the ball is out.