I've been at more than a few startups (one that could be called some form of high+ growth, although it was ultimately unsuccessful), and this tracks. People do

I've been at more than a few startups (one that could be called some form of high+ growth, although it was ultimately unsuccessful), and this tracks. People do what they know; CTOs know how to build, CEOs (usually/often) know how to "business develop", marketers market, PMs design... People do what they know.