The military's new command system, known as mission command, requires that subordinate leaders at all levels are at once aggressive and disciplined in accomplishing the mission. Accordingly, the Chairman's "conduct of military operations through decentralized execution based upon mission type orders" calls for commensurate professional military education (PME), but the emphasis on relative autonomy has not been as pronounced as needed. Among areas where PME is found wanting is not allowing students time to think about what they are learning. Implanting civilian instructors with more experience in building in time for research and reflection, and requiring writing—an operations order a week is suggested—will help develop the critical thinking mission command demands