No one really had much success with the CK/Mika duo this year. Chytil getting injured really hurt Kakko. Think they could've done some damage together on the 3rd line. Kakko has the tools, he needs linemates that are willing to cycle with him. Lots of spare parts for linemates this season. Wennberg winded up being exactly what we thought he was, very limited offensively. This was Cuylle's rookie season.
It'll be interesting to see what route they go. They can bring in a top 6 wing via free agency or trade, that'll push Kakko down on the 3rd presumably with Chytil. They can feast on better matchups. Maybe Berard pushes for that LW spot. Or they can test their luck with Kakko in the top 6 again. Either Lavi will have to mix up the lines and find players that will compliment each other or Kakko & the duo will have to find a way to play together. Those 2 are trying to generate off the rush, Kakko likes to slow down and work the zone... something has to give. Kakko needs to get a little quicker this summer.
Situation reminds me a bit of Burakovsky when he was in Washington. Promising young player, needed a change of scenery. Traded him at 24. His durability has been an issue but since leaving Washington he's scored at a ~60 point pace.