Organizations too often subject their employees and customers to unnecessary friction that creates inefficiency and causes frustration. But, in some situations, friction can be a positive force, spurring more innovation and better decision-making. So how do you reduce the bad kind and embrace the good?  Stanford professors Bob Sutton and Huggy Rao have studied this problem for seven years and offer strategies for leaders at every level to help them recognize when friction is needed or not and then add or subtract accordingly. They share ample examples of people and companies getting it right. Sutton and Rao are the authors of The Friction Project: How Smart Leaders Make the Right Things Easier and the Wrong Things Harder, as well as the HBR article, "Rid Your Organization of Obstacles that Infuriate Everyone."