Among the most troubling aspects of the Kings’ 4-3 record so far is their lack of scoring from their centers. Anze Kopitar, Mike Richards, Jarret Stoll and Trevor Lewis have combined for zero goals and 11 assists in seven games. Kopitar has five assists, Richards has four and Stoll has two. Whether it’s an early-season oddity or a sign something is seriously wrong remains to be seen. The Kings are averaging fewer than three goals per game, a puny figure compared to the five per game the Pacific Division-leading San Jose Sharks are averaging after six games. No one expects the Kings to play run-and-gun hockey. That’s not their style. But zero goals from their top four centers isn’t what anyone in the organization had in mind to start the season, either.