CB put a pressure between R2 and R3 in order to force the defending R2 player to help R3.
LB, who has the position close to the sideline runs in between the defending R1 and R2 no. 1 and 2 to force R1 to help in the defense.
LW, who is positioned close to the rear line runs in behind the defending R1, receives the ball from LB (bounce or behind the back) and shoots.