> By this standard, a CEO would need decent expertise in every aspect of running their business, which as a business scales becomes impossible. I didn't read t

> By this standard, a CEO would need decent expertise in every aspect of running their business, which as a business scales becomes impossible. I didn't read that at all.. "A VP/Executive is a level above managing it, as they need to be managing managers..." The 'higher ups' don't need to know how to do development, but they do need to know how to manager development managers - set priorities, provide assistance/blocking, etc. And the CEO would need to be someone who can manage those executives. The 'domain expertise' is (mostly) expertise/experience in managing people managing other people/processes. At least, that's what I got from the GP comment.