Buffalo BillsOffensive FormationsI Form Pro Slot Tight Twin Te Shotgun Bunch Doubles Doubles Flex Wk Pats Doubles Y-Flex Empty Base Flex Empty Y Slot Snugs Flip Split Flex Trips Te Trips Te Flex Trips Y-Flex Wing Slot Offset Y Off Trips Wk Singleback Ace Pair Bunch Ace Deuce Dice Slot Wing Pair Wing Slot Wing Tight Y Trips Strong I Slot Wing Y Off Weak I Close Defensive Formations4-3 Normal Over Over Plus Under Wide 9 Dime Normal Goal Line 5-3 6-2 Nickel 2-4-5 Odd Double A Gap Normal Wide 9 Prevent 3 Deep