
Diametrically opposite to empirical research in leadership is a heuristic approach to leadership. To summarize this approach is akin to the live and learn approach, learn by your mistakes approach, and a generalize by personal experience approach. Belasco & Stayer have written an oddly titled best-selling book in first

The book begins with the authors' journeys into leadership and various related concepts & ideas. Amongst others ideas like intellectual capitalism, leadership vision, focus, direction, obstacles (removing them), developing ownership in employees, self-directed action & learning to be the leader (lead goose) are discussed. Every chapter is littered with short stories and a moral. There is an Aesop's Fables like feel to the book. Real-life examples are touching and real, however, if you have read Northouse's LTP previously, you can draw parallels to Belasco and Stayer's experiences. Specific leadership theories presented in LTP can easily experience the wise words the authors present. The book is enjoyable, and almost actionable. Some of the advice is basically common sense best practices in action. The writing style is patterned by "try,try again until you succeed, or decide to do things differently".
The authors introduce interesting words and concepts. I liked the word authors invented to mean the inverse of leadership - "status-quo-ship". Another favorite is the concept of "lead goose" in the "intellectual capitalism era". Good advice is provided on every page of the book, obvious common sense is prescribed often. For example, "Leaders proact, not react" is treated as a chapter, the basic premise is that leaders should prevent problems rather than solve problems. Basic management tenets are also provided for the uninitiated, Deliverable (What will be delivered ?), Measurement (How will we know it is done ?), Date (When will it be done ?), Person Responsible (Who will do it ?). The authors recommend that every employee do a process analysis by asking "what can i stop doing?" - remove obstacles. Expectation setting on staff, customers and oneself is disccussed. Henry Kissinger is cited as asking "Is this your best work?". The author(s) push for excellence through action.
I found the authors doing a good job in the area of potential and reaching it. What's the difference between those who reach their potential and those who don't ? Those who do, bring a discipline with them to every task they face. They are willing continuously to challenge themselves. They keep learning how to get better because they do not accept falling short of their potential.
This book can become suddenly interesting and intensely revealing if you decide to read Northouse's LTP first. It is the perfect anti-dote to analysis by knowledge (knowing too much, but acting too little).
But really, what is the best approach to leadership ? Heuristics or empirical ? IMO learn the theory, read about experiences (it is cheaper than having your own) then go out to the field armed with your knowledge and the experience of the authors. Practice.