This paper provides an overview of opportunities and challenges for expert coordination, knowledge sharing, and task performance using advanced information and communication technologies. Evolving in part from [Hendrick, H., 1991. Ergonomics in organizational design and management. Ergonomics 34(6), 743-756] discussion of macroergonomics, this paper describes the author's framework for systems engineering analysis of information flow and performance at team and organizational units of analysis. Work in the author's research lab has focused on several aspects of information technology use and team interactions to support shared understandings, task demands, and effective responses in responses to events. Multiple empirical studies are summarized describing evaluations of technology use, task cycles and expert knowledge coordination in several settings, including aerospace, healthcare, and project management.