A major new study involving some 3,500 executives has highlighted the key skills that innovative and creative entrepreneurs need to develop. The six-year-long research into disruptive innovation by INSEAD professor Hal Gregersen, Jeffrey Dyer of Brigham Young University and Clayton Christensen of Harvard, outlines five 'discovery' skills you need. But, says Gregersen, you don’t have to be ‘great in everything.’ Some well-known business leaders such as Apple’s Steve Jobs and Amazon’s Jeff Bezos rely on their own particular strengths since innovative entrepreneurs rarely excel at all five discovery skills. For example, Scott Cook of Intuit is strong in observational skills. Marc Benioff, founder of Salesforce.com, does a lot of networking, he says. As for Bezos, “experimentation was his forte,” while Jobs is “incredibly strong at associating.”