I run this exercise as main practice in one of the last training sessions with my new U17 Elitè team I am coaching since last 2019 December the 27th.
Some of the players found it a bit difficult, despite I am sure it can be useful for younger boys too.
The main goal was to coach all the players on marking the ball carrier and covering the space at the back, to prevent any through pass, beside their specific roles on the field.
The second goal was to alternate the attacking and defending situations where the players were involved in thanks to continuing transitions to attack and to defend.
The players carried out the exercise in a small-sided space to increasing the rhythm, the switches of roles and the cognitive requirement of the practice.
I must say that the result was good and I think I will look for potential variations and progression to run it again before the end of the season.