Why keep a player who is an above-average pass defender on the backside of twins to play in space vs. a TE, or worse, at the line vs. a blocking TE? To avoid this dilemma, in the 4-2-5 we use a concept called “Flip.”
Many defensive coordinators cringe when they think about blitzing. Why? So many times, blitzing results in having to play Cover-0 or man coverage behind the blitz. Sometimes, more talented teams can zone blitz – but even then, they’re giving up grass and using players who don’t normally have to cover the pass. Because our box players are independent from our secondary, our 4-2-5 blitz packages allow us to stay fundamentally sound without changing the rules of coverage for our secondary players.