What did Renaissance kings do to break out of the groupthink environment their “yes men” advisors created? They asked a “fool.” It was the fool’s job to reframe any proposal under discussion to make it appear in a fresh light. He might extol the trivial, trifle the exalted or reverse the common perception of a situation. Example: “If a man is sitting backwards on a horse, why do we assume that it’s the man who is backwards and not the horse?” Result: he dislodged people’s assumptions and allowed them to see things from a different perspective. What would the fool say about your book-marketing ideas?