I've been to group interviews where they pretty much do that. Randomly divide all the candidates into groups, give them a task, see how they work together. I c

I've been to group interviews where they pretty much do that. Randomly divide all the candidates into groups, give them a task, see how they work together. I can't say I enjoyed the experience - and I've no idea how good it is as a tool - but it was illuminating to see how people treated each other.