Necas is a good piece, but not enough of a player to be 1C in Boston.
Marchessault is a player I really like. But it would really be a win for those that think Don is turning the Bruins into the Canadians. Boston would pay a premium for a proven scorer that STILL needs a good 1C in Boston to produce like he has been in Vegas. He will be getting a big raise over what he is making now and Sweeney would be paying a premium for a player almost Marchands age.
I think Don will concentrate on getting the now and future 1C while simultaneously offering Ullmark. Once that is resolved, one way or another, he can then look at filling holes in other needs like wing scoring.
If we lose our UFAs we need to fill those holes. Don may try to gamble on Peeke being our Forbort replacement. Lysell can step in for Jake(on paper, not solid on his NHL readiness, if you are then convince me) and they can player roster blender with Zacha, Frederick, and Geekie on wing. Poitras I expect to have a big year, I am willing to lay down some investment that we got a special player in the kid as long as he can stay healthy.
1: Sign Swayman
2: Get a 1C or commit to punting until the trade deadline and trying again for this year. If not then next summer.
3: Get a consistent proven scorer on the wing.
4: Move Ullmark in a bid for the previous 2 items or if you cant move him for futures and cap space.
5: Get affordable physical depth D if the cap still has room.
6: Dont go to the cap limit this year(I expect this is an easy one for Don after struggling with it last season)