This has been making the rounds for a while now, but it's still interesting. Here's an editorial on research at MIT's Center for Collective Intelligence relating group success to factors other than IQ style individual intelligence. Although it is described with the term "social sensitivity" I think it refers to a capability that hasn't quite found its study niche yet - emotional intelligence, but at the group level.
"When Malone, Woolley and the rest of the MIT team set out to measure collective intelligence, it wasn’t even clear if such a thing could statistically be shown to exist. Sure, people have spent years measuring how groups perform a task, but no one was really asking if a group that was good at one task would somehow be good at most tasks. That’s something we tend to associate with individual IQ, which is often used as a measure for one’s universal ability to handle complex problems. Does group IQ, or collective intelligence, really exist?"