This is from the Google Zeitgeist earlier last year, but it deals with the issue of leadership and collaboration through the metaphor of conducting orchestras. He points to the importance of opening space for interpretation within organisations and the price of over- control; what he calls "doing by not doing". It seems to me that the same metaphor can be applied to the development of "social' strategies and initiatives as well as organisations. And it looks likely to be a challenge for brands in the social space for a fair while to come. It calls for a clarity of vision and a high degree of confidence and understanding (empathy?) of the role of the brand and its relationships with its communities. Well worth half an hour to watch.