You are leading a project urgently needed by your organization. How can you best motivate your team to meet a demanding schedule? Should you offer bonuses if the team meets a deadline? Not according to Daniel H. Pink, author of Drive: The Surprising Truth About What Motivates Us (2009). Citing psychological research going back to Harry Harlow’s experiments with rhesus monkeys at the University of Wisconsin in 1949 and Edward Deci’s work with students at Carnegie–Mellon in 1969, Pink argues that “extrinsic” rewards—bananas or money—depress problem–solving performance. He believes that what most motivates people at work are the “intrinsic” rewards of mastering a task that engages them.