I despise the bumper. It seems to have infected every power play setup in the league over the past few years. I'd like to see something other than that setup. I realize that's not the spirit of your question.
They've been running the same set-up now for awhile. There is an argument it's gone stale.
It's a double-edge sword going with something else. The current set-up maximizes Pastrnak's one-timer ability, which is this team's best PP weapon.....by far. The threat of a right-shooter in the bumper opens up east-west passing lanes to get it to Pastrnak on the other half-wall.
But there is a level of predictability to it. You know a lot of the play will be from the hash marks and down.
I felt the peak of the Bruins umbrella set-up was when Krug was at the top, his shot was a threat from out high and teams couldn't overplay the down low east-west play as much.
Lindholm/McAvoy/Gryz don't offer that same threat. I'm interested to see if Shattenkirk can do a better job at the top of the umbrella, and then put 2 D on the 2nd unit that rolls into 5 on 5 play. Basically whomever is paired with McAvoy plus McAvoy. Would also take some strain off McAvoy and hopefully get more out of him EV and PK.
Geekie has a decent shot and some touch in around the net, he'd be my first choice to replace Bergeron in the bumper.
My opening night PP 1 unit
Down low/net front left shot - JVR
Right-side halfwall QB - Marchand
Top of umbrella - Shattenkirk
Left-side halfwall one-timer - Pasta
Bumper - Geekie
2nd unit would be Debrusk, Zacha, and Coyle with McAvoy and his EV partner (Gryz or Lindholm) with a different set-up than the umbrella.