I liked this new post on TED about Margaret Heffernan's ideas on social capital:
“Social capital is a form of mutual reliance, dependency and trust. It hugely changes what people can do. This is more true now than ever. It’s impossible in modern organizations to know everything that you need to know. What you need are lots of people who know lots of different things. Collectively you’re smarter."
Heffernan was talking about an individual's social capital but the same applies to organisations too. We need to focus on collective, not just individual intelligence. Hence social not just human capital.