Catching the essence of controversies in managed care is like aiming at an elusive target with a constantly changing shape. The editor has assembled an open-minded and varied group of contributors who address difficult questions about practice, policy, clinical aspects, utilization review, research, training, administration, management, and health reform. Each of the 27 chapter titles is formatted as a question—for instance, "Are Practice Guidelines Useful in Managed Care?" "Who Decides What Is Medically Necessary?" and "How Should the Profit Motive Be Used in Managed Care?"