in addition to Beast's points, my biggest take away from the interview was moving the line of scrimmage back and penetration/disruption, versus control and contain.
There will probably be an increased element of stunts and slants in order to achieve backfield disruption.
The style of defense is much more fun to play as the line gets to be more aggressive… and four of them being more aggressive versus three.
I think in the defensive backfield you were likely to see more combos, switch offs and looks which try to fool the quarterback into thinking he's got a free easy throw when he doesn't. Sometimes you can trick yourself.
The disadvantage of this defensive approach is you give up more big plays. It is a higher risk higher reward, versus the slow death of the long drive and hoping they make a mistake.
I am looking forward to the more aggressive approach... I am really looking forward to not giving 8 yard cushions on 3rd and 3.