In the article "Knowing What to Do is Not Enough" by Jeffrey Pfeffer and Robert Sutton, What roles or role are discussed in this article? Are these roles a strength or weakness for you? What are the basic points of the article? What is your opinion and reaction to the article? How does the article relate to the general principles discussed in the chapter of the text for this role? How do the points raised in the article relate to your work environment or to your experience in general?