How Do You Play Your Cover Down?

Where a defense aligns its overhang directly reflects how it ultimately plays defense.

One overlooked aspect of defensive structure and scheme is the creation of overhangs and cover downs. Don Brown in most of his clinic talks speaks on the importance of creating overhangs to protect the edges of any defense. An overhang refers to the force player outside the box. This can be an outside linebacker, safety, or a cutting corner. The manipulation of these overhangs can create opportunities for defenses to challenge offenses at the edge of the box.

Structurally there are three “lanes” a defense must defend outside the box. It is important to establish what player has what lane at all times. This is a foundational concept that tends to be overlooked. The three lanes are: outside, alley, and crease. When defending the spread, or any offense, it is important for coaches to establish who has what lane. This is along the same lines as establishing who has the dive, QB, and pitch when defending an option team. Below is an illustration of the three “lanes” a defense must protect:

00.1 Fit Breakdown

One way for teams to manipulate these lanes is by how they utilize their cover down to the most receiver side. A cover down refers to the proximity the overhang aligns near the slot (or an inside WR). The further away from the WR the less a players cover down.

This effects the secondary, primarily the safeties, and how they fit the run and distribute the pass. When defending spread offenses there tends to be three main ways defenses cover down: Apex, Full Cover down, and the Outside Bracket. Each one has its own positives and negatives. What is more important is understanding how each cover down effects the structure of the defense from run fits to pass distributions.  Continue reading “How Do You Play Your Cover Down?”

Building a Better [Zone] Blitz

Evolving the age old Zone Blitz.

America’s Blitz

Walk into most defensive staff rooms, ask what their #1 blitz is, and it will most likely be some variation of this:

.01 AM BLITZ

The image above is “America’s Fire Zone Blitz.” A Sam/Mike edge blitz with full line movement, and the defensive end to the boundary dropping to the low hole (replacing the Mike). A “Fire Zone” is simply a blitz that sends five men and plays three under-three deep behind it (Cover 3).  Many times a defensive lineman is used to drop to the low hole (MOF), or to replace a blitzing linebacker (curl/flat). Other variations, like the one below, drop the safety into the box and have the DE sink to the curl/flat.

The emphasis for a defense in this type of blitz package is sending more players than an offense can handle to a certain side. Most offenses have hot routes to counteract a blitzing LB. To counter this, defenses started to drop D-lineman, or exchange the LBs responsibilities, into the vacated spots or rolling secondary players to the hot receivers. Here is an example of a Cross-Dog blitz (the term “dog” = LBs) with the DE to the boundary replacing the Will’s coverage responsibility.

Bill Arnsprarger is considered by football historians as the Godfather of the Zone Blitz. In 1971, Arnsparger began using a hybrid DE named Bill Matheson in coverage. This created a de-facto 3-4 and would eventually lead to a new era of defensive football in the NFL. The schemes relevance was solidified in ’72 with the only undefeated season in NFL history. The “No Name” defense ushered in the “Zone Blitz Era.”

The reason Fire Zones are so prevalent is they are easy to run and can use any player on the field. They are also considered a “safe” way to blitz. Arnsparger, considered the blitz safe because he was still playing zone behind a pressure. Legendary DC Dick LeBeau visited Arnsparger early in his career to gain knowledge about the scheme. The words “safe pressure” resonated:

Bill’s catchphrase was that he wanted to get ‘safe pressure,’ on the quarterback, and that expression stuck with me because that was a very succinct way to summarize exactly what I was looking for. Safe pressure. I walked out the door saying those words to myself.” – Dick LeBeau

To run a Fire Zone, a defense has to have two curl/flat players (or seam players), a low hole player (MOF), and three deep third players. This allows a defensive coordinator to get creative because the blitzers can come from anywhere on the field. If looked at as a numbers game, the offense should be able to handle the rush. Where Fire Zones work is by overloading a side, forcing the quarterback to move, and creating short inaccurate throws to hot WRs. The dropping D-lineman assists in the overload by trying to bait the nearest O-lineman into taking him, only to drop and leave a gaping hole for an oncoming rusher. Continue reading “Building a Better [Zone] Blitz”

“How do you play Trips?” – Pt. 2

MQ explains the top Trips coverages.

The Trips formation creates a dilemma for any defensive coordinator and the problems usually start in the box. The major issue with any 3×1 formation is how a defense chooses to defend the #3 receiver. Regardless if a defense runs an Under Front or Under, the Mike either has to cover down to the #3 WR or the defense has to spin a safety to gain a cover down. If the defense uses the Mike as a cover down, it loses a man in the box and makes the Mike a “fold” or conflict player. To alleviate the issue some defenses drop the boundary safety into the box, but that leaves a defense susceptible to the back side post. Below is an example of Nick Saban’s “Rip/Liz.” The sinking backside safety allows the frontside ILB to vacate and cover down to #3.

02 r-l 3x1

A “fold” or conflict player is susceptible to the Spread’s deadly weapon, the RPO (run-pass option). The run-pass conflict created by Mike’s width and assignment can cause him to hesitate. Play a team like Baylor under Briles, who spreads their Trips formation past the hash, and the Mike will struggle to get to the #3 and fold into the box. In theory, the Mike is always wrong. That’s pretty depressing news for a DC. Below is an example of the Over Front versus a 3×1 formation with no adjustment from the defense.

v. Over

If a DC wants to keep a 6-man box and put the 3 technique (DT) to the Trips it creates a problem for the Mike who has to plug the strong-side “A” while reaching #3 in pass. That’s not an easy thing to do for even the most elite ILBs. The answer for most coaches is to kick the coverage (bring the backside safety across), or spin to some kind of Cover 3 (illustrated above in Saban’s Rip/Liz scheme). In order to make it hard on the offense, a DC must change-up the coverage or move the gaps. It is important to have a base coverage. One that protects you from the most harm. To stay ahead of the offense, a defense must be multiple in its looks, adding pressures, blitzes, and a change-up in coverage if need be. Part 2 of “How do you play Trips?” will explain the multiple coverage pieces to Trips Open.

Continue reading ““How do you play Trips?” – Pt. 2″