In her 2011 book, “Behind the Executive Door: Unexpected Lessons for Managing Your Boss”, Karol Wasylyshyn advanced the idea that leadership could be seen as a continuum that ranged from Toxic, to Perilous and then Remarkable.
The book was the result of work that she did with Rohm & Haas Chemicals in the 80’s and the development of a program titled Leadership 3000 which continues today. It was a holistic approach to developing executive talent by focusing equally on classic leadership competencies and leader behaviors. The former included topics such as strategic thinking, driving results and managing people whereas the latter touched on emotional fortitude, courage and a bias for action. You can find out more of this actual data by going to http://www.karolwasylyshyn.com/pdf/developing_leaders.pdf.