It has long been thought that simulation could be used to design Command and Control (C2) systems, but simulationís benefits have not matched their promise. Instead Enterprise Architecture Planning (EAP) tools have become ascendant in the design of C2 systems, though problems remain. EAP tools break down proposed systems into their low-level, constituent parts and place them into sophisticated relational databases. The resulting architectures however do not yield an intuitive sense of whether the proposed system actually solves the motivating problem. Consequently, fundamental conceptual issues continue to emerge deep into the design process. This study proposes using simulation early in the design process to envision the total system and avoid problems by generating requirements and metrics early in the design process. Issues regarding an Air Force Air Operations Center (AOC) are explored, most notably flow of control and the coordination of sensor, decision, and operator assets.