Well, for this very reason an open space office should have enough conference rooms for everybody. I dread the moment when I will need to "walk through the door

Well, for this very reason an open space office should have enough conference rooms for everybody. I dread the moment when I will need to "walk through the door" to speak with a manager. That's intimidating and discourages people from communicating with them. While private rooms help them do the job on the same and above level, I don't believe it works well for their teams.