Buffalo Bills Offense Offensive Formations Singleback Ace Pair Bunch Ace Deuce Close Dice Slot Doubles Y Off Close Wing Pair Wing Slot Wing Tight Y Trips I Form Pro Slot Tight Z Close Pistol Open Flex Close Shotgun Bunch Empty Base Flex Empty Y Slot Normal Y Off Normal Y Off Close Normal Y Off Wk Split Slot Open Spread Tight Trey Y-Flex Trips HB Wk Trips TE U Trips Wk Y Off Trips Wk Strong I Z Close Weak I Pro