[Megatron96]

Here's the thing: According to ESPN, the top 15 EDGEs in the league historically only "finish the play," about 17% of the time. Probably not a great idea to hang your hat on the idea that your EDGEs are going to get sacks on a consistent basis.

But making a QB make a mistake by getting pressure on him is easier to do, plus if a DB gets a pick, the odds of being able to run it back or at least greatly change field position is much higher.