I actually don't think the Rams will be a complete dumpster fire. Not a playoff team by any means but still competitive.
It all depends on how well Goff does, but I would not be surprised to see them at 7-9 or even 8-8.
The Chargers meanwhile are pretty screwed. Talent wise, they're probably better than the Rams, and they still got Philip Rivers, but they play in a tougher division and if you haven't already, take a look at their schedule. Not easy, especially pre-bye. Probably 5-11 or 6-10.