The evolution of the Kings top forward group has been interesting.
Starting when they got Richards, they also brought in Gagne. Penner was still there from the previous deadline. Brown was still a 25ish goal/50+ point guy. Williams was still 20+ goals, 55+ points. Gagne got hurt, Penner was trash. Richards wasn't quite enough to compensate for that, so they get Carter.
The following year, all those guys are still there, but Toffoli gets a chance in the playoffs.
Then Penner leaves. Brown's production falls off the map, Williams doesn't put up his usual numbers, and all Richards does by that point is pass to Carter all the time. Carter replaces Richards as the 2nd line center, Toffoli gets more ice time because of that, and they also trade for Gaborik in part because Brown just couldn't score. Then Pearson becomes a larger part of the picture in the playoffs like Toffoli the year before.
This season, Richards get booted off the team, Brown still can't score, Williams is no longer a 55+ point winger, Carter, Toffoli, and Gaborik are keeping the Kings above water, but now Kopitar shoots less than he ever has, and nobody has been able to pick up the slack.
Every addition the Kings have made, has coincided with a decrease from players that were already here. Which one came first is the eternal question. Kopitar has been the one constant in there through all the other changes. 1st line wingers, 2nd line wingers, 2nd line center, they've all changed in some form, and the Kings have been able to bring other guys in to help as that has changed. Except with Kopitar this year. But you're not just going to bring in another #1 center and push Kopitar down a slot like they've been able to do with everyone else.
Now another round of change will happen this summer with Williams most likely gone. How that gets figured out will go a long way in determining how next season goes. Will Kopitar shoot again, the way he has in the past when the Kings didn't have as many offensive options? Can they get a couple more goals out of Brown? Will they be able to get anyone? Will they give players in the pipeline a longer look? Huge questions, since the veterans will be another year older.