When you set your defensive depth to 71 or higher, with 71 being the switching point, your team AI starts to press and track runs on defense, as opposed to just passively letting the other team progress through you.
When you set your defensive depth to 71 or higher, with 71 being the switching point, your team AI starts to press and track runs on defense, as opposed to just passively letting the other team progress through you. The significant thing about this is there is no appreciable loss of stamina at least for the first half.