- Playing 5.5-on-4
Pulling your goalie tends to be less beneficial on a power play, since icing calls can’t be called against penalty killers (so they can attempt a long shot at an empty net goal without a consequence if they miss) and since the marginal benefit of the extra attacker is smaller when you compare the difference between 6-on-5 and 6-on-4 to the difference between 5-on-5 and 6-on-5. As such, while trailing teams will still usually pull their goalie during the last minute or two of the game if they are on a power play, they tend not do so on a power play with, say, three minutes left in the game.
But what if, instead of pulling the goalie to get an extra attacker, a team instead uses its sixth man as a safety: positioning the sixth man around centre ice, so that he can help prevent a long empty net goal, while also being able to jump forward into the play as needed, in order (for example) to help prevent the puck from clearing the offensive zone, or to take a point shot. The sixth man would be playing, in effect, as both a goalie and a defenseman. And when he does jump into the zone at one point, a teammate from the opposite point could fall back to fill his safety position.
This strategy could perhaps even be usable at some times when not on a power play, in order to take advantage of having the puck in the offensive zone (or in order to take advantage of tired defenders) at a time earlier than the coach would otherwise be willing to pull the goalie. If, for example, a coach is not comfortable with pulling his goalie with 2.2 and 20 seconds left in the game, but would rather wait until the 2 minute mark to pull his goalie, he could have the option of using a 5.5-on-5 strategy for 20 seconds first.
2. Power play specialization and trade
Power plays arguably consist of two different skill-sets. One is getting the puck set up inside the offensive zone, the other is scoring a goal. Many of the league’s star players or power play specialists are excellent at both of these skill sets. But there is unlikely to be a clean overlap between the two. Getting the puck inside the zone on a power play, for example, depends more on skating, while scoring on a power play depends more on skills like passing, shooting, obstructing the goalie’s vision, and winning face-offs.
As a result, teams that do not have many great stars or power play specialists might want to think about a different strategy than the conventional “top power play unit, second power play unit” division of duties that NHL teams generally use. Instead, they may want to use a “specialization and trade” strategy: have one lineup optimized to getting the puck set up inside the zone, and then another lineup (some star players can play on both lineups) optimized for scoring a goal once already in the zone. The latter line would be subbed on the ice whenever there is a face-off inside the offensive zone on a power play. The former line could be subbed on (sometimes) on the fly when the opposing team shoots the puck down the length of the ice. This type of one-two punch strategy might also be useful at times playing 5-on-5.