Over the last decade, the idea that robots and agents might participate meaningfully in complex group and organizational contexts has developed from a promising vision into a reality. Robots now assist humans in simple tasks such as delivery through complex, high-stakes tasks such as disaster response and surgery. In this talk, I will introduce the discipline of design and describe, with examples from our work, how it is a critical research practice in designing complex agent and robot systems that fit in a number of social and organizational contexts and support all aspects of interaction.