The Final Four of the 2011 NFL season has been set with the Patriots hosting the Ravens next week and the 49ers taking on the Giants. For the 2011 season, the Ravens, 49ers, Patriots and Giants were ranked 3rd, 6th, 7th and 11th respectively in the Trench Counter. The Trench Counter was developed by RealGM and creates a completely objective examination. The formula accounts for yards per carry, yards per pass, first downs, turnovers and penalties. It attempts to identify which team controls the line of scrimmage, controls the trenches. Over the final five weeks of the season the 49ers, Patriots, Ravens and Giants were ranked 4th, 8th, 9th and 12th respectively in Trench Counter.