I think they need a change of philosophy.
They need to get back to a dump-chase-cycle system. They are too reliant on trying to use speed and skill to get in the zone. It can also reward effort and it’s easier to acquire effort players to fill you bottom 6 than it does skilled guys that can bring it in the zone themselves.
Along the same lines, they also need to develop some type of checking line that is tough for another teams top lines. The kind of guys that make them think twice when going in the corner for the puck. They also need better presence in front of the net. They need more size and toughness and a little less skill.