One of Microsoft's problems is their pay is significantly lower than FAANG and so you very very rarely see people with expertise in the same verticals jump to Azure. I get that "the deal" at Microsoft is lower pressure for lower pay but it really hinders the talent pipeline. There are some good home grown principals and seniors, but even then I think the people I worked with would have done well to jump around and get a stint at another cloud provider to see what it's like. Many of them started as new grads and their whole career was just at Azure.

Meanwhile when I was at another company we would get a weekly new hire post with very high pedigree from other FAANGs. And with that we got a lot of industry leading ideas by osmosis that you don't see Azure getting.