Coach calls red or green at random to start one player from that line.
The players cleans out the defender shield calls clear.
The first player from the other line get Butt over ball and calls anchor.
The coach can set off a second defender shield to compete with the anchor player at random times.
Speed
Body position
ball security
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."