Love the idea of changing the power-play rules which currently allows short-handed teams to ice the puck without a stoppage in play, but I totally understand concerns that blowing the whistle for a face-off every time this happens could really slow things down.
Just to throw something out of left field that I think no one has mentioned yet:
What about adding 20 seconds to the power-play every time the short-handed team ices the puck, but instead of blowing the whistle, the power-play team goes back to retrieve the puck, but that 20 seconds is automatically added to the power-play on the score clock as soon as the referee indicates it has crossed the line? Now, I have no idea if that is technically possible to do on the score clock, but what it would do is penalize the short-handed team while still keeping the play alive.
If a team insists on icing the puck while short-handed, a two minute minor could carry on for four minutes which would inevitably lead to a goal in a lot of cases. Presto. More goals, the flow of the game is maintained and short-handed teams are no longer allowed to ice the puck which has stuck in the craw of many observers for decades.
Call me Gary.