Not only that, but is anyone really "great" across multiple/all domains? I've worked across a pretty diverse set of businesses and functions in management, and

Not only that, but is anyone really "great" across multiple/all domains? I've worked across a pretty diverse set of businesses and functions in management, and I can say pretty confidently that "greatness" is very dependent upon fit for the problem space, and I do mean that to work both ways: Fit is incredibly dependent upon the individual giving a shit about that problem space. No doubt someone could be very good working on something they don't care that much about, but we're talking great here, right? That means talking/writing in broad strokes about great developers approaches impossible. I also don't think you need "great" developers in most roles. Sometimes average is exactly what you need, and hiring above that just leads to having a great person leave because they're not particularly challenged or enthusiastic about the role. And to wrap all of that up, I don't even know that I can objectively define what "great" really means anyway, so maybe I have no place in this discussion :)