Hey Charlie,Sounds as if we may well have some agreement! Leadership is indeed context dependent and thus is not conducive to generic solutions (unlike much of management consulting). However, that is not to say that you cannot learn from a variety of contexts to determine what may work in your own.Again, real leadership consulting is not just about the individual leader. Much of my work has been focussed on getting a common understanding between the 'leaders', stakeholders and other people on what leadership actually means in the particular context. What ‘success’ means, how it is or is not measured, is also context dependent and often much work has to be done here. Alignment between leadership understanding, vision / goals, and performance measures often provides clarity for the leaders, people and organisation to raise performance. Coaching and/or mentoring, and other interventions are required dependent upon the leadership challenges in the particular situation.As mentioned before, leadership is not the same in all organisations or at all levels of the organisation. Therefore, a deep and broad knowledge base, good sense making processes, and an inquiring mind are required to determine the best interventions in leadership consulting.Psychology has dominated the field of leadership, but there is a growing recognition that psychology does not provide all the answers required in good leadership. As you highlight, biology may also contribute something worthwhile, as does philosophy, and other fields of knowledge.Try reading some of the leadership books by Bennis, Conger, Northouse, Senge, Yukl, etc. There, you will find many of your answers that you seek, and many new questions! :)