Cones are used to mark two areas as shown. (approximately 12x12 meters).
Set up two goals, one pole in the centre of the area and three - three other ones in both directions toward the goals. Place two speed ladders in the middle as shown.
In this case 16 field players take part in the exercise. 
Two teams of 8 are identified with different colors, who play 6v2 rondos in both areas. For this reason two players from each team begin the defending roles in the opponent's zones. 
Of course, the progress can be performed with different number of players. For example: 5v1 rondos 4v1 or 7v3 etc.
The goalkeepers stand in the goals.
Balls are placed in each goals and next to the areas.

The exercise is performed in both areas simultaneously.
The teams try to possess the ball in a 6v2 overnumbered situation at the same time.
If a defender touches the ball or it leaves the area, one of the two defenders (it depends on who is working inside for a long time) accelerates, runs over the speed ladder, turns around the center pole to the determined direction and performs a quick feet movement among the poles in a zig-zag way. Then he asks for a ball from the keeper and tries to score.
After that he runs to the other square to switch with one of his team-mate. 
Meanwhile the other six players keep the possession against just one defender.