So, I wasn’t thinking Apple or Google when I wrote this because those are giant companies that hire globally. Most of Apples profit comes from products produced far from the valley. That said, I’ve worked with lots of veterans of Apple and Google and there quite literally is no correlation between having worked at those companies and being good. I believe that the current hiring environment in software is so broken that being hired by someone is effectively arbitrary.
Similarly Microsoft and Amazon are not valley creations but are giant profitable companies that hire tech workers from a wide variety of regions.
When you hire as much of the industry as those companies do its not at all surprising that the talent in them runs the gamut. They represent so much of the industry it would be near impossible not to have a big distribution of talent within them.
But when you get into the rest of the ecosystem is when it gets pretty ugly pretty fast. So far as I can see the biggest correlative factor with engineers in the valley is a capacity to move there. That filter does not trend towards being good at the job. And I’ll stand by my anecdotal opinion.
I think the more amazing thing that some firms are able to overcome this talent problem is that it took a global pandemic for the opinion it being an issue to change.