Well, that's a bit of a six of one, half dozen of the other issue with the wings. You'd have less of a need for scoring wings if you had more scoring from the center position - and they tried to address that issue by acquiring Arvidsson. I've come around some on Lizotte; he still isn't an ideal 4-th liner center in my opinion, but overall that fourth line is terrific, due in large part to the revelation that the play of Lemeiux has been and the discovery of his two-way game in the AHL by Kaliyev.
The lack of a legit high-end D-man to complement Doughty is an issue separate from the forwards, but I don't see this team making a deep run without solving that problem along with the lack of forward scoring problem. Aside from acquiring a defenseman, I think the Kings are counting on the solution to the scoring problems from inside the organization. If Byfield/Turcotte/Kupari/Kaliyev start chipping in on a consistent basis, you don't need any one of them to light it up. Scoring by committee can work.