I would really like to know why no one has been held accountable on this. It's not like it's been getting better. They are flat out awful on the PP. And given that we're good for at least 3-4 dumb penalties a game, there's no excuse.
If you watch enough Preds games, you notice that most every team they play, plays very aggressive against them on the Penalty Kill. Some teams naturally play aggressive, but when everyone's doing it, that means the book is out on you. Don't let Nashville get set up in the zone and start moving the puck around, don't give the defensemen clear shots, and pressure whoever has the puck if you can. Preds are either unwilling, or more likely unable, to adjust with the personal they have. You can't blame the injuries either, because the PP sucks when everyone is healthily too. 40+ games into the season, you are what you are.