You're running a pressure defense with a blitz rate higher than anything done in the NFL currently. Very risky, especially if your job depends on it. Still, I kind of like it.
There's some talk that the pendulum will swing away from zone coverage that forces long drives down the field back to pressure defenses.
I agree playing 2 ILBs in nickel on a 3rd and 12 is iffy -- I'd think you'd want speed and coverage ability on the field.
The danger of taking your backers off the field is something like a screen where they can get 250-300 pound blockers on your 200 pound CBs. That's a mismatch. Still, I'd think you'd play more dime than nickel in those situations. Barry likes nickel.