I think part of the issue this year was the lack of vets. Look at the forward group. Panarin, Strome, Buch, Zib, Kreider.
Then you had Rooney and Blackwell.
Laf, Kaako, Chytil and Gauthier.
Panarin and Strome should play together.
The Kreider-Zib-Buch line was all about trying to find a way to get Zib going for half of the shortened season.
Next year will be worse more than likely unless a trade is made or signing is done. If Strome and Buch are both traded (which is possible), you're left with Panarin, Zib, Kreider as the vets at forward. How do you sprinkle in young players with only 3 veterans?
On defense it's going to be worse. Lindgren-Fox should be stapled to eachother. Trouba was already playing with Miller. The 3rd pairing may be comprised of Lundqvist, Schneider, Reunanen, Hajek, Robertson unless a veteran is signed.