It is pre-season so might as well try it and see what happens.
Glad they're trying this, because we don't have powerplay d-men for the second unit. Subban and Markov can't play the full 2 minutes every time every game. Gill and Gorges should stay far away from the PP, and Spacek isn't what he used to be. That leaves whichever of Yemelin or Weber is in the line-up, plus a forward.