3 v 3 at either end with two midfield players always attacking with the team in posession.
To start with it may be best to restrict the 3 v 3s to the half of the goal they are attacking and defending so the shape of the game is clear and you can work on the principles of defending.
This session can also be used to work on attacking movements.
Principles of defending
Create a resolution to develop your coaching confidence by seizing the opportunity to discover new drills, turn ideas into action and seek advice from the coaching community.
World Rugby has reportedly conceded Aaron Smith's disallowed try in the World Cup final should have stood.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."