Where org charts are tidy and MECE, teams are messy. Connections crisscross all over the place, and there is lots of overlap: team members track and travel through not only their own specialized territory but often the entire playing field. Trust and purpose are inefficient: getting to know your colleagues intimately and acquiring a whole-system overview are big time sinks; the sharing of responsibilities generates redundancy. But this overlap and redundancy—these inefficiencies—are precisely what imbues teams with high-level adaptability and efficacy.