As a research method, simulation can be useful in coping with the lack of data or in designing experiments that would be too costly or risky otherwise. This is especially relevant in the domain of crisis response, where on top of the difficulty of controlling data gathering and experiments there is also a lack of theory, particularly in terms of coordination. We present a framework that guides the use of simulation as a method for theory development in this domain. We illustrate this framework with research in progress aimed at extending the theory of coordination in crisis response. A simulation model is built to operationalize the theory and enable improved understanding of coordination in crisis response.