In recent years, the corporate self-help book has become a staple of the publishing industry. In the world of big business, books that claim to offer the secret to managerial success are themselves big business, routinely topping the bestseller lists and, in turn, anchoring the high-profile careers of executive coaches such as Gary Ranker, Kevin Cashman and Stephen Covey. Marshall Goldsmith is one of the most successful of corporate America’s celebrity coaches — he typically makes upwards of a quarter-million dollars for a year or so of work with each individual client — and is also one of the best. The founder of executive coaching firm Marshall Goldsmith Partners LLC, Goldsmith has worked closely with more than 70 CEOs during his career. The chief executives of Ford Motor, GlaxoSmithKline, Getty Images, the American Heart Association, Allergan and Cessna, to name a very few, all sing his praises. Forbes has named him one of the five most respected executive coaches.…