I really like these posts which trying to apply philosophical principles to lean ideas. However, I find that a major problem with virtue theory is that its hard to establish exactly which patterns of behaviour are to count as virtues. The danger is that virtue theorists simply redefine their own beliefs and preferred ways of, in this case, leadership, as virtues. Virtue theory can become an intellectual smokescreen which offers little scope for change based on the culture and morality of societies, or at a more local level, organisations. A book relating to the “personal development” perspective of ethical thinking which you should read (if you’ve not already) is, Mary Warnocks “An Intelligent Person’s Guide to Ethics”. In it she looks at the world and its moral choices primarily from the standpoint of the individual as opposed to approaches largely based on utilitarianism or questions of rights and obligations.