If it ain't broke, don't fix it.
I do not want big moves, little upgrades are more than fine, especially guys with the right character, willing to do the dirty work, more interested in winning than stat padding. I think a big deal could backfire, this team has great chemistry, don't mess with it.
Add Provorov and Konecny from juniors, Leier from the AHL.
Let Sanheim and Morin play together in Allentown.
Let AK, Fazleev et al get some seasoning.
Add a big center to the 4th line who can skate and forecheck and PK.
Leave Raffl on the 2nd line with Couts and V
Laughton - Cousins - Konecny
Leier/VV - PEB/??? - White
MDZ - Gudas
Provorov - Ghost
McDonald - ???
Manning, Streit and Schultz are expendable, but with Morin and Sanheim in the wings, and Myers ETA in 2017 or 2018, no reason to put a lot of resources in the D.
Play out Umberger's deal, they have the cap room to pay it off.
Medvedev, Gagner & Weal buy you $7M, Streit and Schultz expire after next year. So no urgency to clear cap room by pushing it forward.