I'm not saying a group shouldn't have structure, or that people shouldn't wait in turn, but sometimes it is liberating to let the discussion follow an organic evolution. And Christine Purcell, my collaborator on The Breach, whose job it was to ride roughshod on us, let the banter and ideas flow, reining us in at last by care-taking the person whose work we were critiquing and making sure ideas were summarized and needs were met.
Any group is a tricky animal to groom and maintain. Too often some groups fall into a predictable groove and tedium ensues. Mixing it up, changing or rotating leadership, trying different activities and letting things evolve rather than forcing them are often the difference between a productive outing and a fulfilling experience.