Being self-employed for two and a half decades, all of my work has been from home and I've had no trouble using whatever collaborative media are at hand to keep the personal interaction going. The most important thing in my experience, though the most politically delicate, is to keep the bosses' noses locked out of the worker bees' free speech spaces. Everyone needs a place where it's safe to say that the boss is an ignorant jerk, to develop the workarounds that keep the boss from screwing up the work, and to give and receive the help that the less-than-perfect don't want the boss to know that they need, just as people naturally do in an office.
This is not to suggest that I know what I'm talking about. It's just what has always worked for me.