Increasing Project Flexibility: The Response Capacity of Complex Projects fills this void as a report of research conducted by Serghei Floricel, Sorin Piperca, and Marc Banik. Project organizations generate a social structure that is unique to each organization. One of the essential properties of the structure is its ability to deal with unexpected events, or what the authors call its “response capacity.” To explore and better understand this element, the authors adopt a three-stage approach that includes theoretical development, qualitative investigation, and quantitative exploration. In the theoretical development stage, the study draws on fundamental social theories and prior project management research to propose three properties of the project structure that define its response capacity: cohesion, flexibility, and resourcefulness.