Without starting another thread, here's this choice (unfortunately this may be an actual choice for Holland in 2016)
Sproul or Marchenko? Which one do you keep?
I keep Sproul. Not that I want to get rid of Marchenko, there just won't be enough room.
Kronner - Ericsson
Dekeyser - Smith
Ouellet - Sproul
Sproul and Marchenko wouldn't be battling for the same role anyways.
Sproul is a potential offensive defenceman while Marchenko is a defensive defenceman.
Regardless, we'll probably end up carrying 8 anyways for injuries and depth.