Deborah Ancona and Kate Isaacs, researchers at MIT Sloan School of Management, say many companies struggle to be nimble with a command-and-control leadership culture. They studied Xerox’s R&D outfit PARC and the materials science company W.L. Gore & Associates and found these highly innovative organizations have three kinds of leaders: entrepreneurial, enabling, and architecting ones. These roles work together to give direction and avoid creative chaos. Ancona and Isaacs are coauthors of the HBR article "Nimble Leadership."