The message of Muzafer Sherif’s work is that when you give people an important enough problem to solve together, they can put aside their differences. A good problem contains the seeds of its own solution. Rather than lubricating people with drinks at a networking reception or getting them to play silly games at a team-building event, the way to get conflicting teams to gel is to give them something worth doing together – something where failing to cooperate simply isn’t an option.

