The center ice position wouldn't even be top 5.
Age of core players
Goaltending
PK
Inability to win board/crease battles
Soft mentality
Poor, submissive coaching
Those were essential issues, with only Trevor Lewis brought in to address any of those issues.
Then its an overall lower level of talent across the board. Now that's where the center depth, lack of production from younger players and poor roster makeup enter the picture. They addressed that in spades over the summer, but I leave that at the bottom of the list because the Kings DID have enough skill to mount a bigger threat then they offered, and PLENTY of teams with less overall talent have won a round or rounds by gelling as a team and playing above their skill level as a unit.
Dubois, the clearing out of place holders for younger more talented defensemen, and the higher projections of the younger players will help there undoubtedly.
But at the end of the year, they will still be old, still outworked in the tough areas, and still coached to react instead of dictate. The results will most likely still be the same.