I am a fan of Roger Martin - Dean, Rotman School of Management. His POV on Design Thinking captured in his book The Design of Business explains a lot of how business approaches innovation (or does not).
His presentation at Parsons is a great version of that POV. It explains so much of the tension inside organizations to adopt social media. If you are charged with changing your organization or driving productive adoption of social media marcom, this video will likely inform your own effort.