What I find significant in this thread is the observation that the line is built for play action and not deep drop passing. In 17 and 18, when the scheme was fresh and the line more sound, there was a ton of deep passing but mostly off play action. Once teams adjusted, McVay pivoted to other formations, more power runs, and quite a few empty sets. The results were naturally mixed. Goff wasn't alone in his errors but it's obvious now that McVay targets him as central to the issues.
I expect we will see an extensive offensive overhaul. I suspect McVay will develop a mobile QB like Payton did with Hill to mix into his offense (and use Akers in the Wildcat as well). It will be interesting to see how it all develops.
But I hope those who analyze the Rams' weaknesses recognize how the dominant Chiefs go through rough halves of offensive football regularly. Often, the difference is Mahomes, Hill, and Kelce. We saw what happened in 18 when Kupp went down. Nobody can argue that the Titans and Ravens have potent rushing attacks but there are critical times when even that disappears. I truly believe when someone presses McVay to declare what the offensive identity is (Run/Pass, Zone/Power, Stack/Spread, Short/Long, Traditional/Read Option) his answer is yes, all of the above. That's what he sought from Staley's defense and what we saw developed this year on offense.
This means more changes are in the offing besides the QB. I don't believe a rookie center can accomplish this so I expect a FA center will be his next target. Perhaps Marvin Jones provides a deep threat but he would have to accept less money to come. What comes next is one pivotal and fascinating offseason.