I could bikeshed on this, but I think this is missing the overall point. It's not that nothing is measurable, obviously some tech skills are measurable and obv

I could bikeshed on this, but I think this is missing the overall point. It's not that nothing is measurable, obviously some tech skills are measurable and obviously some people are going to do better on those things, but those things are less measurable as you move up the ladder, and less measurable for leadership skills over technical skills, and less measurable among groups of people with relatively similar levels of experience. I'm not saying nothing can be measured so you might as well hire the mailperson to the principal engineers job. The point is that you can have a fairly large group of equally qualified people for a job.