Reminds me of the Boeing managers saying that they didn't need senior engineers because its products were mature..
A few blown doors and deadly crashes later, that didn't age well..
And this is a problem! Most of Intel’s recent major architectural changes over the last decade or so have been flops. [1] Quite a few have been reverted, often even after they ship. I presume that Intel does not actually have many people who are really qualified to work on the architecture.
[0] I’m talking about how it interacts with an OS and how you put it together into a working system. Understand stuff like SIMD is a different thing.
[1] AVX and its successors are notable exceptions, but they still have issues, and Intel did not really rock the early implementations.