Now i want to make it clear that this isnt 100% sure to get pressure. but its something to make a 4 man rush much more effictive.
1.) Re blitz your standing LB that is on the line
2.) spread him out about 5 yards away from the OT (about a yard inside the nickle back)
3.) Spread out your line
4.) [optional] shift your line to the side of the blitzing backer
i like to run this on 3rd and long out of cover 3. if you have a fast LB then about 5/10 he will get by the o line untouched and sack the QB. either way it will bring good pressure