I’m not familiar with Jensen’s work. He has taught at Harvard Business School since 1985. As a business professor, his work in leadership is not economic-theoretical.
http://www.hbs.edu/faculty/Pages/profile.aspx?facId=6484&facInfo=res
For comparison and contrast, here is an economic-theoretical approach to entrepreneurship and business by Peter Klein:
http://library.mises.org/books/Peter%20G%20Klein/The%20Capitalist%20and%20the%20Entrepreneur%20Essays%20on%20Organizations%20and%20Markets.pdf
