For nearly 30 years Wharton management professor Lawrence G. Hrebiniak has taken the art of business strategy and put it under a microscope. Over time he has brought one critical element into irrefutable focus: Creating strategy is easy but implementing it is very difficult. In his new book Making Strategy Work: Leading Effective Execution and Change (Wharton School Publishing) Hrebiniak presents a comprehensive model to help business leaders bridge the gap between strategy making and successful strategy execution. He challenges executives to recognize that making strategy work is more difficult than setting a strategic course - but also more important -- and he documents the obstacles that get in the way of successful performance.