“Joel Trammell (2014) likens CEOs to diamonds: “Most are flawed in some way, all are hardened and formed under crushing pressures and intense heat, and they are judged by degrees of quality.” He goes on to suggest the three Cs for assessing quality in a CEO are credibility, competence, and caring. I like this analogy a lot, and would recommend his book ‘The CEO Tightrope’.”