“The social comparison bias is also a cause for concern with start-up companies. Guy Kawasaki was “chief evangelist” at Apple for four years. Today he is a venture capitalist and advises entrepreneurs. Kawasaki says: “A-players hire people even better than themselves. It’s clear, though, that B-players hire C-players so they can feel superior to them, and C-players hire D-players. If you start hiring B-players, expect what Steve [Jobs] called ‘the bozo explosion’ to happen in your organization.” In other words, start hiring B-players and you end up with Z-players. Recommendation: Hire people who are better than you, otherwise you soon preside over a pack of underdogs. The so-called Duning-Kruger effect applies to such Z-players: The inept are gifted at overlooking the extent of their incompetence. They suffer from illusory superiority, which leads them to make even more thinking errors, thus creating a vicious cycle that erodes the talent pool over time.”" "— The Art of Thinking Clearly by Rolf Dobelli