sentences:  Head coach
  !Offensive coordinator
  
  The New England Patriots run a modified base 3–4 Chuck Fairbanks-Hank Bullough system installed by Bill Belichick.The term 3–4 means that their base formation consists of 3 defensive linemen (defensive end, nose tackle, and defensive end), 4 linebackers (outside "Will" weak side linebacker, middle "Jack" weak side linebacker, middle "Mike" strong side linebacker, and outside "Sam" strong side linebacker), and 4 defensive backs (cornerback, free safety, strong safety, and cornerback).