Mary has studied what makes teams effective in a variety of dynamic contexts, such as flight crews, nuclear power plant engineers, hospital trauma teams, fire-fighting teams and emergency crisis teams. In her studies of interaction patterns she has identified some key lessons for leaders to keep in mind:   Setting the tone: interaction patterns emerge quickly and solidify.  Initial patterns of interactions influence the subsequent effectiveness during dynamism.  Teams that had reciprocal, balanced and consistent interaction patterns performed better in highly adaptive situations. In the thick of it: when teams face ambiguity, uncertainty, and incomplete data effective teams accept ambiguity...