I wouldn't even think about splitting Pav and Z after this past week. IMO it's the best they've looked together since 08. In addition I think you continue to challenge Franzen to drive the play by allowing him to center Fil and Cleary.
Bert would be an upgrade over Cleary, but let's face it - Babcock isn't sitting Cleary. Cleary is one of those guys who has picked up his intensity level in past postseasons, so maybe he can show us a little something more come Game 1.
I don't think you make a lineup change until you lose at this point in time. Why would you? Bert and Sammy have barely played and are old. You have a team that is currently playing their best hockey of the season. You have to keep it rolling. If it was a noticeable upgrade like Helm or any of our other top 5 forwards you obviously play them if they're ready, but that's not the case with Bert and especially Sammy.
With all of that being said I wouldn't be shocked to see Bert playing on the 3rd or 4th line in place of Brunner, Tootoo, or Eaves. It's just not a move that I would make right now.