Many domains contribute to sustainable research data management programs, including data science, digital curation, data curation, digital archives, digital preservation, and information technology for example. This paper focuses on the intersections between digital curation, data curation, digital archives, and digital preservation. The author builds on two models: Radical Collaboration, an approach to working across domains illustrated with a research data management example, and the Digital Archives and Preservation (DAP) Framework, which disambiguates digital archives and digital preservation. This exploration provides an overview of the models, presents the results of extending the DAP Framework to research data management, then considers a series of cross-domain collaboration opportunities and challenges for sustainable research data management in an increasingly digital, virtual, and global world.