Lets look at the three distinct models briefly and try to understand the differences:
A Closed business is the typical business model we learnt about in the 80s, every department doing it's own thing with their won resources and establishing their own empires. After all the bigger your empire and the more people who reported to you, the higher salary you could command on whichever grading system your company had chosen to follow. Sharing was for the children who watched Barney on TV. We must always remember that Closed business systems do resonate with most people as it appeals to our selfish 'all about me ego'.
Arguably every business is a social business because every business has people in it; and people presumably are intrinsically social. So I don’t think it’s a question of bringing it into the business, I think it’s a question of unlocking it, but just how do we unlock the intrinsically social within us?