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A lone nose tackle in a base 3–4 defense formation. Typical 3–4 nose tackles are "big wide bodies who can hold the point of attack and force double teams by the guard and center". [3] They are usually the heaviest players on the roster, with weights ranging from 320 to 350 pounds (145 to 159 kg).
The middle or inside linebacker (MLB or ILB), sometimes called the "Mike" or "Mac", [15] is often referred to as the "quarterback of the defense". [16] Often it is the middle linebacker who receives the defensive play calls from the sideline and relays that play to the rest of the team, and in the NFL he is usually the defensive player with the electronic sideline communicator.
The 3–3–5 defense can also be referred to as the 3–3 stack or the spread defense. It is one form of the nickel defense, a generic term for a formation with five defensive backs. Veteran college football defensive coordinator Joe Lee Dunn is widely credited with being the main innovator of the 3–3–5 scheme. [1]
Cornerbacks across from their assigned receivers in a base 3–4 defense A cornerback ( CB ) is a member of the defensive backfield or secondary in gridiron football . [ 1 ] Cornerbacks cover receivers most of the time, but also blitz and defend against such offensive running plays as sweeps and reverses.
Less common is sending a defensive back on a blitz, whether safety blitzes in which a safety (usually the free safety) is sent, or corner blitzes where a cornerback is sent. Sending a defensive back on a blitz is even riskier than a linebacker blitz as it removes a primary pass defender from the coverage scheme.
In American football, a nickel defense (also known as a 4–2–5 or 3–3–5) is any defensive alignment that uses five defensive backs, of whom the fifth is known as a nickelback. The original and most common form of the nickel defense features four down linemen and two linebackers .
The Miami 4–3, also called the 4–lslide, is a scheme closely associated with the Jimmy Johnson-led Miami Hurricanes, and taken by Johnson to the Dallas Cowboys. Built around Jimmy Johnson's notion of "upfield pressure", it is a penetrating, swarming defense, with a "get there firstest with the mostest" mentality.
The 3-3-2 formation consists of three linemen, three linebackers and two defensive backs. It is one of the most flexible formations, allowing multiple looks and blitz packages and freeing the middle linebacker from most pass coverage responsibilities; this way, the middle linebacker can be used for stopping the run.