Ball at the low post by CSKA Moscow

In this article I would like to share with you a CSKA Moscow Offense detail that I have caught today, which is used by them when they pass the ball to the low post.

After receiving the ball from 1, 2 hits 5 at the
low post, and moves to set a down screen for
4 who comes off hard the screen to high post.
5 hits 4 at the high post for a 2pt shoot.

If 5 can pass to 4, then 4 sets a ballscreen for
1 and rolls to the left low post. 5 slides to the
right low post. 1 can dribble to the rim, can
pass to 4 at the left low post, or to 5 at the
right low post.