sentences:  New England Patriots strategy
  
  The New England Patriots generally run a modified Erhardt-Perkins offensive system and a Fairbanks-Bullough 3–4 defensive system, though they have also used a 4–3 defense and increased their use of the nickel defense.The Patriots run a modified "Ron Erhardt-Ray Perkins" offensive system first installed by Charlie Weis under Bill Belichick.