directly in front of the weak side tackle. The free safety lines up about ten to twelve yards away from the line of scrimmage and will stand directly in front of the weak side guard. Cornerbacks: The corners will line up on the line of scrimmage in bump and run coverage, or at times will line up seven to eight yards off of the line in front of their receivers in man-free 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. To note, there is nothing particularly innovative about this particular set of assignments. For example, the strong safety could assume either the charley or the jack linebacker role. The linebacker displaced would line up over the weak side offensive tackle, where the strong safety is normally found. See also Glossary of American football 1985 Chicago Bears season References Notes Sources ESPN.com. "The List: Best NFL defense of all-time", ESPN Page2, Retrieved on August 22, 2007. ESPN.com. "Greatest NFL teams of all time", ESPN Page2, Retrieved on August 22, 2007. ESPN SportsCentury, "Bears' 46 Defense" (2004) [TV]. ESPN. Released on January 29, 2004. Jaworski, Ron, Cosell, Greg, and Plaut, David, The Games that Changed the Game, Ballantine Books, 2010, Chapter 5. Schweitzer, Preston & Tornabene-Zalas, Art. "46 Defense - Correcting the Flaws" (May 6, 2000), The Zone. Retrieved on August 22, 2007. Stoltz, Jeremy. "Chalk Talk, The 46 Defense" (May 24, 2007). Retrieved on February 16, 2008. Tom Worgo. "A blast from the past: remember Chicago's 46 defense? It's back again—this time in Baltimore, where Ray Lewis is trying to make it hum" (November 2005), Football Digest, Retrieved on August 22, 2007. Zimmerman, Paul. "A Brilliant Case for the Defense" (February 3, 1986), Sports Illustrated. Retrieved on February 16, 2008. External links Chalk Talk: 46 Defense (archived) 1985 Chicago Bears Defense Playbook 1990 46 Buddy Ryan Defense Playbook American football formations