Capers threw some different crap out there... but 2-4 is his default alignment. He ran it more than anything else - and we got throttled when we were in it more often than not.
The defense has absolutely no identity - and when your default alignment is junk, it's got to be terribly demoralizing for the players to know they are being set up for slaughter. One of Lynch's TD runs was almost completely uncontested, as the front six simply got washed away.
Dom has to go... he simply doesn't know what he is doing anymore. He's 93 years old, and the game has simply passed him by.