46 defense
Encyclopedia
The 46 defense is an American football
American football
American football is a sport played between two teams of eleven with the objective of scoring points by advancing the ball into the opposing team's end zone. Known in the United States simply as football, it may also be referred to informally as gridiron football. The ball can be advanced by...

 defensive formation
Formation (American football)
A formation in American football refers to the position players line up in before the start of a down. There are both offensive and defensive formations and there are many formations in both categories.-Offense:...

. The formation comprises four down linemen, three linebacker
Linebacker
A linebacker is a position in American football that was invented by football coach Fielding H. Yost of the University of Michigan. Linebackers are members of the defensive team, and line up approximately three to five yards behind the line of scrimmage, behind the defensive linemen...

s, and four defensive back
Defensive back
In American football and Canadian football, defensive backs are the players on the defensive team who take positions somewhat back from the line of scrimmage; they are distinguished from the defensive line players and linebackers, who take positions directly behind or close to the line of...

s. The 46 defense was originally developed and popularized by Chicago Bears
Chicago Bears
The Chicago Bears are a professional American football team based in Chicago, Illinois. They are members of the North Division of the National Football Conference in the National Football League...

 defensive coordinator Buddy Ryan
Buddy Ryan
James David "Buddy" Ryan is a former American NFL football coach.-Early years:Ryan was born and reared in a small, agricultural-based community "just outside of Frederick, Oklahoma." Ryan played college football for Oklahoma A&M University where he earned four letters as a guard between 1952 and...

, who later became head coach of the Philadelphia Eagles
Philadelphia Eagles
The Philadelphia Eagles are a professional American football team based in Philadelphia, Pennsylvania. They are members of the East Division of the National Football Conference in the National Football League...

 and Arizona Cardinals
Arizona Cardinals
The Arizona Cardinals are a professional American football team based in Glendale, Arizona, a suburb of Phoenix. They are currently members of the Western Division of the National Football Conference in the National Football League...

. Today the scheme is currently used on a regular basis by the New York Jets
New York Jets
The New York Jets are a professional football team headquartered in Florham Park, New Jersey, representing the New York metropolitan area. The team is a member of the Eastern Division of the American Football Conference in the National Football League...

 head coach and defensive coordinator Rex Ryan
Rex Ryan
Rex Ryan is an American football head coach for the New York Jets of the National Football League . After serving as an assistant coach for twenty-two years, Ryan attained his first head coaching job in the NFL with the Jets in 2009...

, son of Buddy Ryan.

The name "46" originally came from the jersey number
Squad number
In team sports, the squad number, shirt number, jersey number, sweater number, uniform number or simply a number is the number worn on a player's uniform, to identify and distinguish each player from others wearing the same or similar uniforms...

 of Doug Plank
Doug Plank
Douglas Walter Plank is a former American-football safety and coach in the National Football League. Currently, he is the head coach of the Philadelphia Soul in the Arena Football League.- Early life :...

, who was a starting safety for the Bears when Ryan developed the defense, and typically played in that formation as a surrogate linebacker.

Description

Buddy Ryan once said in an interview (while he was with the Chicago Bears), "to stop a passing game you had to put pressure on it, some teams are good enough do it with a three man rush, but we're not, in fact I don't know if we can do it with a four man rush, if we need to send eight we'll send eight but we're not going to let you sit back there and pick us apart all day."

The 46 defense was an innovative defense with a unique defensive front. Bill Walsh himself said that the 46 defense was the single most important innovation on the defensive side of the ball in the last 25 years. The 46 defense was designed to confuse and put pressure on the opposing offense, especially their quarterback. A hyper-aggressive variant of the 4-3 base set
4-3 defense
In American football, a 4–3 defense is a defensive alignment consisting of four down linemen and three linebackers. It is probably the most commonly used defense in modern American football and especially in the National Football League. NFL teams that use the 4–3 defense as of 2011 include the...

, the 46 dramatically shifted the defensive line to the weak side (the opposite end from the offense's tight end
Tight end
The tight end is a position in American football on the offense. The tight end is often seen as a hybrid position with the characteristics and roles of both an offensive lineman and a wide receiver. Like offensive linemen, they are usually lined up on the offensive line and are large enough to be...

), with both guards and the center "covered" by the left defensive end and both defensive tackles. This front forced offenses to immediately account for the defenders lined up directly in front of them, making it considerably harder to execute blocking assignments such as pulling, trapping and pass protection in general. Moreover, the weak side defensive end would be aligned one to two yards outside the left offensive tackle, leaving opposing tackle 'on an island' when trying to block the pass rush.

Another key feature of the 46 is that both outside linebackers tend to play on the strong side of the formation. To avoid confusion, the strong and weak side linebackers (who are no longer lined up on opposite sides) are often renamed the 'Jack' and 'Charley' linebackers, respectively. The linebackers line up behind the linemen somewhere between one and three yards from the line of scrimmage
Line of scrimmage
In American and Canadian football a line of scrimmage is an imaginary transverse line beyond which a team cannot cross until the next play has begun...

. The primary tactic is to rush between five and eight players on each play, either to get to the quarterback quickly or disrupt running plays, although dropping some players back into pass coverage after seemingly indicating that they will blitz (see zone blitz
Zone blitz
The zone blitz is a common method of defensive pressure applied in American football, usually at the collegiate and professional levels. It exists in nearly limitless permutations, all of which share the common theme of confusing the offensive line by dropping pass-rushers into coverage, while at...

ing) is another method of creating confusion. Ryan would use all of these rushers to out-man and overwhelm the offense. Another major key to the 46 is the ability of the cornerbacks to play man-free and bump-and-run coverage. Bump-and-run can allow the defense to take away the quarterback's immediate decision-making ability, by disrupting the timing of short routes needed to make a quick throw to beat the 46 defense.

The formation was very effective in the 1980s NFL because it often negated a team's running game and forced them to throw the ball. This was difficult for many teams at the time because most offensive passing games centered around the play-action pass, a situation that often favored the defense even further with the quarterback lined up to receive the snap from directly behind the center.

Currently, the 46 is rarely used in professional and college football
College football
College football refers to American football played by teams of student athletes fielded by American universities, colleges, and military academies, or Canadian football played by teams of student athletes fielded by Canadian universities...

 (with the exception of teams led by Buddy's sons, the New York Jets
2009 New York Jets season
The 2009 New York Jets season was the 50th season for the club and the 40th season in the National Football League and the last season at Giants Stadium. While they did not improve their 9–7 record from 2008, this time the team headed to the playoffs. The Jets fired head coach Eric Mangini on...

 coached by Rex Ryan
Rex Ryan
Rex Ryan is an American football head coach for the New York Jets of the National Football League . After serving as an assistant coach for twenty-two years, Ryan attained his first head coaching job in the NFL with the Jets in 2009...

, and the 2010 Cleveland Browns
Cleveland Browns
The Cleveland Browns are a professional football team based in Cleveland, Ohio. They are currently members of the North Division of the American Football Conference in the National Football League...

 when Rob Ryan
Rob Ryan
Rob Ryan is the defensive coordinator for the Dallas Cowboys of the National Football League. He is the son of former defensive coordinator and head coach Buddy Ryan and the twin brother of current head coach of the New York Jets, Rex Ryan.-Early life:When his parents, Doris and Buddy Ryan,...

 was the defensive coordinator). This is largely because of the popularity of the West Coast Offense
West Coast offense
In American football, "West Coast Offense" refers to two similar but distinct offensive-strategic-systems of play: the "Air Coryell" system; or more commonly the pass play system popularized by Bill Walsh...

, used successfully by San Francisco 49ers
San Francisco 49ers
The San Francisco 49ers are a professional American football team based in San Francisco, California, playing in the West Division of the National Football Conference in the National Football League . The team was founded in 1946 as a charter member of the All-America Football Conference and...

 head coach Bill Walsh
Bill Walsh (football coach)
William Ernest "Bill" Walsh was a head coach for the San Francisco 49ers and Stanford Cardinal football team, during which time he popularized the West Coast offense....

, and other offensive schemes that rely on short, timed passes from formations with multiple receivers.

A minor weakness of the 46 defense can be too many defensive players lining up near the line of scrimmage to blitz, leaving areas open for receivers to catch passes. Also, short, timed passes can be thrown before the players blitzing have a chance to reach the quarterback. Another problem is that most teams do not have enough impact players to run the 46 as effectively as the 1980s Bears, the late 1980s Eagles and the 1993 Oilers did. Those teams fielded some of the best front-seven defenses ever, and included such players as Mike Singletary
Mike Singletary
Michael "Mike" Singletary is an American football coach and former professional football player. He is currently the linebacker coach and assistant head coach for the Minnesota Vikings of the NFL....

, Reggie White
Reggie White
Reginald Howard "Reggie" White was a professional American football player. He played 15 seasons as a defensive end in the National Football League for the Philadelphia Eagles, Green Bay Packers and Carolina Panthers, becoming one of the most decorated players in NFL history...

, Richard Dent
Richard Dent
Richard Lamar Dent is a former American football defensive end, who played primarily for the Chicago Bears of the National Football League. He was the MVP of Super Bowl XX...

, Dan Hampton
Dan Hampton
Daniel Oliver Hampton also known as "Danimal" is a retired Hall of Fame American football defensive tackle who played twelve seasons for the Chicago Bears from 1979 to 1990 in the National Football League. He was elected to the Pro Football Hall of Fame in 2002...

, Clyde Simmons
Clyde Simmons
Clyde Simmons, Jr. is a former American football defensive end in the National Football League who played for the Philadelphia Eagles , Arizona Cardinals , Jacksonville Jaguars , Cincinnati Bengals , and the Chicago Bears . He was selected to the Pro Bowl in 1991 and 1992...

, and Wilber Marshall
Wilber Marshall
Wilber Buddyhia Marshall is a former American college and professional football player who was a linebacker in the National Football League for twelve seasons during the 1980s and 1990s...

.

The ideas of the 46 defense are more often used in today's game by bringing a fourth defensive back (usually the strong safety) up closer to the line of scrimmage, as an eighth man in "the box" to help stop the run. Defenses today may also run safety blitzes and corner blitzes at crucial moments without committing wholly to the "46" defense. Up front, teams still use the concept of the "T-N-T" front, where defensive linemen are lined up over the center and the two guards. This makes it difficult for the interior linemen to reach any of the linebackers on the second level.

Lining up

This is where defensive players would line up against a normal Pro Set
Pro Set
In American football, the pro set or splitback formation is a traditional formation, commonly a "base" set used by professional and amateur teams. In pro set formations, the running backs are lined up side-by-side instead of one in front of the other as in traditional I-formation sets...

offense.
  • Defensive ends: The weak side defensive end lines up one to two yards outside the weak offensive tackle. The strong side defensive end lines up directly in front of the strong side guard. The object of the weak side defensive end against the run is to protect against reversals and counters. Otherwise on pass plays he goes after the quarterback. The strong side defensive end is to make sure the offensive guard in front of him does not push him inside and does not get released to block the linebacker.

  • Defensive tackles: The weak side defensive tackle lines up in front of the guard. The other defensive tackle essentially becomes a nose guard and lines up in front of the center. The main objective for the weak side tackle is the same as the strong side defensive end - to avoid being pinched inside or let the guard release to block the linebacker.

  • Linebackers: The jack linebacker lines up on the outside shoulder of the strong tight end and, like a defensive lineman, lines up on the line of scrimmage. He ensures nothing gets outside of him on the run. He can do multiple coverages on the pass or he can blitz. The charley linebacker will line up on the line of scrimmage and on the inside shoulder of the tight end, to cover the tight end or making it difficult for the tight end to release easily. The middle linebacker will line up about four to four and a half yards off the line of scrimmage and directly in front of the strong offensive tackle.

  • Safeties: The strong safety will line up four to four and a half yards off the line of scrimmage and will stand directly in front of the weak side tackle. The free safety will stand about ten to twelve yards away from the line of scrimmage and will stand directly in front of the weak side guard.
  • Cornerbacks: Corners will line up seven to eight yards off the line of scrimmage in front of their receivers in man-free coverage or they will play up on the line of scrimmage in bump and run coverage.


When three or more receivers are used by the offense, the defense makes what is called a jayhawk adjustment. The charlie linebacker will step back to where the middle linebacker was in the normal alignment, the middle linebacker will move to where the strong safety was aligned and the strong safety will move out to cover the third receiver. If the offense uses a fourth receiver, the middle linebacker lines up in front of the center and the charlie linebacker would cover the fourth receiver.

External links

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