American football, a 4–3 defense is a defensive alignment consisting of four down linemen and three linebackers. It is called a "base defense" because it is...

football, the 3–4 defense is a common defensive alignment consisting of three down linemen and four linebackers. It is called a "base defense" because it...

football, the 4–4 defense is a defensive alignment consisting of four down linemen and four linebackers. Originally seen as a passing defense against the...

defense might give up a big gain or two. Compared to older 4–3 defenses, such as Tom Landry's 4–3 inside, the defensive line assignments are simpler. Linemen...

football, the 3–3–5 defense is a defensive alignment consisting of three down linemen, three linebackers, and five defensive backs. The 3–3–5 defense can also...

single middle linebacker playing in a 4–3 defense, and two inside linebackers playing in a 3–4 defense. In a 3–4 defense, the larger, more run-stopping-oriented...

first to introduce the 3–4 into the NFL as a base defense. The 5–2 (or 5–4, or 3–4, or Okie, or 50 defense) is a popular defense at all levels of coaching...

5–3 defense is a defensive alignment consisting of five down linemen and three linebackers. Defense is based on two standard formations, the 6–2–3, and...

conditions (under DEFCON 3) and Charlie/Delta under DEFCON 4, plus an "Emergency" level higher than DEFCON 1 with two conditions: "Defense Emergency" and the...

strength, one on one defense and ball possession helped his revival. Later, also, Italian coach Antonio Conte successfully implemented the 3–5–2 at Juventus...