Although much has already been written about the rise and fall of Enron, four important questions remain unanswered: What management behavior and practices led Enron down the path from truly innovative to fraudulent management? How could Enron's board of directors have failed to detect the business, ethical, and legal risks embedded in the company's aggressive financial strategies and accounting practices? Why did Enron's external watchdogs--security analysts, credit-rating agencies, and regulatory agencies--fail to bark? What actions can prevent Enron-type breakdowns in the future?...