Lay a small pitch out, with 2 small goals. Ensure the goals are small enough that players aren't tempted to make wild from far away.
Divide the players into 2 teams of equal ability, give each player a number, so that there are 2 of each number, one from each team (e.g. two 1's, two 2's, two 3's, etc). When doing this, try to give players of equal ability the same number.
All players stand on the outside of the pitch. Coach shouts a number and the player from each team with that numbers runs into the pitch to play 1v1. After an amount of time coach calls another number and the players with that number run in making it 2v2.
This continues (e.g. 3v3, 4v4, ..... all v all) until a goal is scored. At this point all players move back to the sideline and coach calls another number starting again at 1v1.
Encourage players to focus on the game - they should not be asleep when their number is called!
The game is all about adapting to the evolution of the teams. As new players come into the game the rest of the players should adapt to the reduced space and communicate to each other to adjust their formation and tactics.
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."