In their book Measuring Leadership Development, Phillips and Ray present 14 success factors or requirements of Leadership Development (LD) programs that include training early in the book. The rest of the book is dedicated to explaining how to achieve the factors when planning an LD. How do they know these 14 are the key success factors? They use results from a survey of 232 leadership practitioners on the reasons LD program fail. Those results are provided below along with 4 tips related to specific factors.