The Criticality-Sensitive Coordination (CSC) is engaged in research and development on multi-agent systems to develop decision support assistants that enable fielded human units to dynamically adapt their mission plans in response to change. Research problems include distributed coordination over large interconnected mission structures that change dynamically, supporting coordination of large-scale operations where units may have roles in multiple missions, learning to support the units better by automating decision making when data is potentially sparse, responding in (fast enough) "real time" to change, and reasoning about decision-making policies and procedures during coordination.