An example in how to train 2nd wave players.
The players are positioned as shown on the drawing with 3 attackers and 4 defending players.
On a signal the 3 attackers runs forward as shown:
The goalkeeper passes the ball to LW.
LW passes the ball to RB, who - dribbling - seeks against the center of the court.
LB also seeks the center and makes a cross with RB.
LB receives the ball and can shoot if there is no defender who can prevent this.
Alternatively 2nd wave (LW) - who is attacking on the outside of the defending backcourt - receives the ball.