Not sure of this is close to being even a reasonable starting point for Couture, but they could use an upgrade on the RW and if they are inclined to move him and reload instead of rebuild:
1st + Pominville + Olofsson + ???
Pominville would slot in to either of their top 6 wing spots (Wingels was their top RW still on roster and had 36 pts last year per one site).
Like I said, not even sure if this is a reasonable starting point, or if they'd be willing to move Couture. Adding Pominville would be a reload move but it would only free up 500k in salary which could be a problem for them too. They'd probably want a top end forward prospect instead of Olofsson but I saw they only have three D under contract (plus Brenden Dillon as a RFA).
So, laughed out of the room or something to build on?
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Let's continue the Sharks / Wild pipeline