Playbooks

Side Blitz out of 2-4 Load Dbl Mug in Nickel Big Nickel personnel shows all six underneath defenders crashing downhill at the snap, with four linebackers/DBs mugged at the line pre-snap to disguise the pressure package. The diagram shows no deep safety help drawn, meaning this is a pure pressure call sending numbers to one side to overload the protection rather than a coverage-based rep. This is a blitz play designed to win with structural overload and man coverage behind it, not a zone beater, so the primary read for the defense is simply getting to the quarterback before the overloaded protection can adjust, with the initial rush lanes on the boundary side as the first source of pressure.
Pre-snap, identify the number of blockers in the backfield, if the offense has only one running back or is in empty, this blitz has a numbers advantage and should be called with confidence. Watch the offensive line's protection slide before the snap, if the line shifts toward the mugged side the quarterback has identified the pressure and a quick hot route or screen is likely coming. Post-snap, key on the running back's release, if he stays in to block the overload the rushers must win quickly off the edge since coverage behind is thin. This look gets exposed by quick game concepts like slants and hitches that beat man coverage before the pressure arrives, so if the offense audibles to a three step concept expect the ball out fast. Against play-action or RPO looks this blitz can be vulnerable since the linebackers are already committed downhill, so watch for a running back leak or a bootleg away from the overload side.
Use this on early downs against offenses that run empty or spread sets, since the overload has fewer blockers to identify against and slower to slide protection can be immediately identified pre-snap. Disguise the mug look by shifting defenders late so the offensive line cannot get a clean protection call before the snap, this is critical since the whole point of Side Blitz is surprise pressure. Pair this with Cover 3 Sky or Cover 1 LB Blitz from the same set so quarterbacks cannot key on the mugged look and assume blitz every time. Save this call for third and medium or third and long situations where the offense is more likely to be in five or seven man protection and less equipped to pick up extra rushers. Avoid calling this on obvious passing downs against mobile quarterbacks who can escape the initial rush lane, since the overload leaves little contain on the backside.