If we keep Vinny, this would be a nice PP:
Simmonds-Giroux-Vinny
Streit-Voracek
Read-Couturier-Schenn
Timonen/Ghost-Umberger
Maybe?
I'd prefer Schenn in Vinny's spot on the top unit. He's good at getting into space and shooting. Should be able to replace what Hartnell brought to that unit. Vinny (if he's here) is a good option to have If Schenn isn't working. Both being left handed helps give Giroux an option in the high slot.
The second unit is going to be interesting. I think having Vinny there would be better than having a bunch of younger players and Timonen.
Something like this is what I hope Berube tries:
Read/Akeson - Couturier - Vinny
Timonen - Read/MacDonald
Akeson clearly has some talent and can be effective on the PP IMO. I'd play him on the left half wall where Giroux usually is. Put Couturier in the high slot to give Akeson an outlet. Vinny can hang on the right wall and get open for one timers. I like Read on the point. He's got enough skill to be up there and is certainly fast enough to get back in case of a turnover. If Timonen is on the left side then it opens up one timers between Akeson and Kimmo. That would leave the same instance on the other side with Read and Vinny. The only downside is that there's no real net front presence but there's plenty of shooting options.