B sets the mark on A's backhand side and counts. C jabs toward the break side, and D goes too, staying on the open side.
With B on that side, A has no easy throw there. C plants and cuts across to the open side, with D on the inside.
A throws the forehand past B and out in front of C. C catches on the run and D chases.
C throws the disc back to E. E becomes the thrower, A the mark, and B joins the line. F cuts next, C defends and D joins the line.
The next round starts with the same force. After a few rounds, call a backhand force and run it the other way.