In order to maximize the shot chances in a power play, the attacking team must get into the DZ and establish their system and begin to execute it as soon as possible.

In the traditional 5 on 4, the defense will fall back into the DZ and create a box or diamond pattern.  This allows for the most coverage of the area with limited players, and keeping the continuity of their defense.

As the offense enters the zone the establishment of a net front presence is vital to screening the goalie and having a player ready for tip-ins and rebounds.  As they battle to the crease, the rest of the attackers need to get into position in a star or umbrella pattern.  This puts a player in each "corner" of the zone and allows for open passing options.  Make sure to stay mobile and not get flat footed.  Lack of movement will lead to miss chances and give-aways to the defense.

DRILL

Establish the positions for both offense and defense.  You can start with no defenders to get a feel for the movements, only 2 defenders as indicated by the red defenders in the diagram, or 4 as identified by Purple.

The coach starts outside the zone with pucks, and sends one to one of the outer ring players.  At this point it is up to the attackers to move the puck around to get the best shot.  All players should be moving based on the puck holders actions.  If the puck holder skates below the goal line to move around, then the team should move in kind to keep the coverage going.

Make rules such as the puck must make 5 passes before being shot, or the players must change positions at least twice before the puck can be shot on net.