Do Henry Mintzberg's writings make an enduring, invaluable contribution to our understanding of the contemporary public policy process? Mintzberg argues that organizations display eight structural configurations and corresponding coordinating mechanisms. Such structural configurations are shaped by a variety of contingency factors, especially power and environmental ones. Using Mintzberg's work, eight policy modes, corresponding to structural configurations within government organizations and political systems, are identified and placed on a matrix that comprises two dimensions: standardization and centralization. Six polarities in the policy process arise from this matrix. Mintzberg's work, the paper argues, remains of enduring value because it provides a seminal framework for a richer understanding of the current policy process, by offering a contingency theory of structures and policy modes, as well as by frank acknowledgment of the protean nature of the policy process.