Sorry, that was unclear. Hitchcock is running complete forward units (i.e. Steen/Backes/Oshie, Perron/Berglund/Stewart, D'Agostini/Sobotka/Langenbrunner) on the PP as opposed to picking and choosing from among all the available forwards to best match up their individual talents to the specific PP scheme. He's doing that so that he has an intact forward unit to get the matchup he wants against the other team once the PP expires.
Personally, I'm not a huge fan of that line of thinking. Probably my first real disagreement with what Hitchcock is doing/has done here.
Ahh I see what your saying, and I'd have to agree.
As a side note, I have liked how Hitch has tried to keep certain lines together for the most part (assuming players are healthy) during 5-on-5. Although he did recently change Arnott to the fourth line, the Steen - Backes- Osh and now the Perron - Bergs - Stewart lines are really starting to click. One of my biggest qualms with Murray and Payne was their constant shuffling of lines. Seemed to send a message that things needed to be "fixed" by the coach (or in other words, the coach lacked confidence in the players working out whatever production problems they were having on their own), where Hitch keeping them pretty constant tells the players he has faith in them and their abilities.
In regards to the powerplay, I see no reason to try and "force it" by keeping your 5-on-5 lines together. Get the players out the that give you the best chance to score. But I am by no means an expert at coaching, so I'm willing to defer to Hitch's decisions, especially with the way he's got them playing.