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 Cleveland Browns, Philadelphia Eagles, New York Giants, Atlanta Falcons, Oakland Raiders, St. Louis Rams, Minnesota Vikings, Chicago Bears, Carolina Panthers, Cincinnati Bengals, Indianapolis Colts, Jacksonville Jaguars, Tennessee Titans, Detroit Lions, New Orleans Saints, Tampa Bay Buccaneers, New England Patriots, Seattle Seahawks, Denver Broncos, and Baltimore Ravens. The Broncos returned to the 4-3 with the hiring of John Fox as head coach. The Patriots returned to the 4-3 in the 2011 NFL season