In his book What Got You Here Won’t Get You There, Marshall Goldsmith points out that the fundamental beliefs that drive our success can also make us resistant to change. We overestimate our contributions and sometimes take credit for things that others have accomplished, while often ignoring our own shortcomings. These delusions are the result of success, not failure. He observes that the four key beliefs that have helped us become successful can also make it very difficult for us to effect change.