Communities of practice are the bridge. Fertilize the soil, but stay out of the garden. It won't work. You'll get what the community wants to deliver. For its members, boundaries exist to be crossed, just as mountains exist to be climbed.
Information wants to be free.
That's the subversive part. A person's responsibilities to the communities of which he is a member sometimes conflict with each other, and with the rules and interests of the companies he works for. It happens all the time. They swap secrets like street vendors opening their jackets to flash contraband Rolexes. They withheld big scoops and were unlikely to talk to rivals that they figured didn't have much to offer in return.