On Baker and Fairburn Hockey Show they mentioned the PP might be composed of the regular lines to help prevent the disruption of the game when the PP is over. Not sure I agree with that line of thinking
They have the opportunity to have a defensively responsible puck hound on each line.
Benson with Norris and Tage
Doan with Quinn and Kulich
McLeod, Tuch and Zucker all together.