> There are a shockingly small number of people who are really capable of being a CEO of a large (or even medium sized company) and doing it well.

How much of this is due to genetics and prenatal environment and how much to education and life experiences? If the former dominates there isn't much we can do for now, but if it's the latter, there's gotta be a massive market for CEO-schools, both public and private.

Personally, I suspect that the limiting factor is social capital--most CEOs get hired because they're known among people connected to the board, and it's hard to get known. I'm not sure what the solution in this case is though, except maybe more residential desegregation by class and ethnicity.