This alignment was my preference. Keep the first pair intact as we know it works well, and give them a bit more ice time, if necessary.
I've been impressed with Fleury. I think he can play a complimentary 2-way role with Pionk, keeping the size that we lost with Samberg.
I'm less sure of Miller anywhere but the third pairing, but he will give stability to that pairing in a sheltered role as Heinola adjusts again to the NHL.