O1 plays the ball down the line to O5, who is between the defense's midfield and back lines.
D1, the nearest defender, presses O5 from the inside. D2 covers behind D1, and D3 and D4 shift across toward the ball.
O5 knocks the ball down the line past D1, straight toward D2, the covering defender.
D2 steps out to pressure O5. D1 recovers goal side into the cover position behind D2.
The roles have swapped: D2 presses, D1 covers, and D3 and D4 hold the middle. O5 still has no way through.