Gerstner, Jackson, and Winfrey are provocateurs, leaders who are successful not just because they have built a company or an organization, but because they have created a community. Provocateurs are changing both the form and the content of leadership and are in sync with a world being turned upside down by technology, the global economy, and the social landscape.

Success has traditionally been based on command and control, and the model for many leaders was the general who marshaled people and resources to get the product out the door and onto the shelf.

Early in his career, Larry Weber had the opportunity to meet or work with people like Mitch Kapor, the founder of Lotus, and Steve Jobs, the cofounder of Apple. He saw that they were more like the leaders of rock bands (or the directors of theater groups or circus ringmasters), who encourage innovation and individuality. A rock band does have a leader -- think of Mick Jagger and the Rolling Stones -- but one who promotes the group and encourages individuality. And when a rival band comes to town, it's not cause for head-to-head competition but an opportunity to increase the size of the pie by creating more fans, or customers, for their genre of music.

Provocateurs think and act differently because they put the customer at the center of everything. They are: