Apple CEO Steve Jobs used to talk about a phenomenon called a “bozo explosion,” by which a company’s mediocre early hires rise up through the ranks and end up running departments. The bozos now must hire other people, and of course they prefer to hire bozos. As Guy Kawasaki, who worked with Jobs at Apple, puts it: “B players hire C players, so they can feel superior to them, and C players hire D players.” That’s the bozo explosion, and that’s what I believe has happened at HubSpot in the course of the last seven years.