RB passes to RW, who makes a pressure.
RB runs in and puts a screening on the defending R2.
RW passes the ball to CB, who has moved in against the defending L2.
CB now returns the ball to LB, who runs in and "shoots" in front of the screening.
The "goalkeeper" returns the ball to the new RB and the exercise starts over again.
CB takes the position as defending R2, and the "old" defending R2 becomes LB