2 high safety, nickle defense. Take away the deep ball. Force teams to nickle and dime you. If your offense can get a lead it forces the opposing offense to abandon the run and play to your strengths. McD defense at its finest. The question I ask you is, would you rather give up 300+ passing yards and 50 yards rushing or 200 yards passing and 120 yards rushing? Its relative at this point. All that matters is if you win the game or not. This style of defense has its pros and cons. Wins are all that matter.