Detroit Lions Offensive Formations Singleback Ace Pair Bunch Deuce Close Doubles South Doubles Y Off Close Tight Y Off Wing Pair Wing Slot Wing Stack Y Trips I Form Slot Close Tight Twin TE Y Off Pistol Doubles Flex Hip Shotgun Bunch Doubles Doubles Flex Wk Doubles HB Wk Doubles Y-Flex Empty Base Flex Empty Trey Stack Spread Flex Wk Tight Trips TE Trips TE Flex Trips Y-Flex Wing Slot Wk Wing Stack Y Off Trips Wk Y Trips Wk Strong I Y Off Weak I Pro Defensive Formations 3-4 Cub Even Over Under 4-4 Split Nickel 2-4-5 Dbl A Gap 3-3-5 Sam 3-3-5 Wide Dime 2-3-6 Sugar Weak Quarter Normal Prevent 3 Deep Goal Line 5-3 6-2