i think it is this way round but I can never remember.post pillar ball (behind tackle bag to simulate ruck) pillar post easiest way to teach it is using different cones for the players to identify pillars and posts. three metres back blow whistle run forward get in position as you arrive shout out pillar (crouched low body position to stop poaching round fringes , post and when everyone in position shout set.do this unopposed to start of with and then introduce another set of players to compete against removing the tackle bag and creating an actual ruck. both teams running out to the ball on the ground which is placed neare the attackers.