I know the nickel is really your base. Or, what I call get off of the field defense. But, we are building a heckuva linebacking corps. It's really a hybrid off the 4-3. With Chandler Jones playing RDE as you would in a 4-3. Vince on the nose. Need a 5-tech to play LDE. LB's left to right would be; Ninko - Hightower - Spikes - Mayo. Jamie Collins playing in the nickel and back-up. There's always an injury or two. Fletcher and Beauharnais providing additional depth. Main reason I'm saying this is that I'd hate to lose Spikes. He's not a 3 down lb. But, he provides our defense with a hammer we don't have. None of our safeties play all that ferocious. But, he brings it. Collins can play passing downs against good running teams. Maybe, cover the te. Use Arrington when teams go 3 wr and more of a spread look.