can leadership be taught?

no, but it can be learned. Again, the key is the exercise of the spacebetween stimulus, that is the teaching, and response, that is the learning, and if people will exercise their freedom of choice to learn the knowledge, skills and character traits associated with leadership (vision, discipline, passion and conscience), they will learn to be leaders that others will happily chooose to follow. In a very real sense they are both followers of principles. Ultimately a good leadership team is a complementary team where people´s strengths are made productive and their weaknesses made irrelevant by the strenghs of others.