> "My theory is that Buffett is hoping for one last large crash before he retires so he can go shopping for distressed companies."

There was a video of a QA session with him recently where he was asked something like that and he answered (paraphrased) "we are keeping cash so that we can buy cheap things when they come up. Some people think I'm waiting so Greg Abel(?) can have a nice opportunity when he takes over, but I'm not that nice, if I see something I will buy it". And reiterated the commonly stated idea that Charlie Munger thought they'd have done better if they only ever made ~5 carefully chosen investments in the lifetime of the company, and that investing too freely, quickly, often, was a bad idea.

I think that leaves a difficult situation for the next CEO, people are going to expect them to do something and probably the best thing they can do is as much nothing as possible, reading, watching and waiting. Without Buffet and Munger's history of that it might be hard to defend.