We have used the "Stinger" technique since 2005.
We have taught our DE's to play with this technique using the Wide Tackle 7, Split-6, DC-43, Double Eagle Flex, and Gap-8 defenses. We use a few adjustments in all of these defenses, but the "Stinger" style of DE play has been so successful, we use it exclusively on every down.
It is more correct to refer to the Stingers as OLB's because they actually do more than "crash and box". We teach these players to play the near back man-to-man against the run AND the pass.
Here's the technique:
The OLB aligns 2-3 yards outside the EMLOS; Inside foot forward-pointed directly at the near back in the offensive backfield; At the snap, the OLB SPRINTS with his initial aiming point directed at the hip of the near back. His path of attack will vary depending on the action he sees in the backfield.
This player's mantra is "Attack the Back"
If the near back goes away, the path of the OLB will flatten and he will trail through the offensive backfield watching for counters, reverses, bootlegs.
If the near back comes at him as a lead blocker the OLB will "attack the back" as aggressively as possible keeping his outside arm free. We want to disrupt the play as quickly as possible and as deep as possible in the opponents' backfield. We want the OLB to turn the runner inside, but if the runner is intent on bouncing the play outside, we want his running path to become much deeper than normal, and we want our OLB to be able to tackle the runner using his outside arm.
If the near back attempts to release for a swing pass, the OLB will cover the back. (Our OLB's have intercepted passes and returned them for TD's every year)
Against the option, the OLB will have the pitch man.
We have never had better than a mediocre player at the OLB position. An obedient, reasonably good athlete can be coached to play using these techniques. HOWEVER, these players will need to get live reps EVERY DAY in practice. If you have at least two coaches to help with the defense, have one of them assigned to watch one of the OLB's on every down or rep in every practice.
If you use the Wide 7 defense, you will need a sure tackler at MLB
If you have a FS with the ability to fill the alley quickly and a good MLB-You will be in really good shape
Your SS's (ILB's) will have to be drilled daily on jamming TE's. They must not give ground