Scientific American, August 16, 2019
Within any large organization, some employee teams always perform better than others—but the reasons are often murky. In 2010 then doctoral student Ben Waber embedded himself in the offices of Travelco, an online travel agency, to figure out what factors make a team productive. He noted that all the employees worked in the same headquarters, sat in the same meeting rooms, and enjoyed the same snacks and Foosball tables. But when he observed certain interactions among them, he says, “there was something really weird”: he saw members of the most effective teams tended to eat in groups of 12, while employees from lower-performing teams usually ate in groups of four.