While working at a small staffing company, we frequently made changes (pretty much every Monday, to be honest, especially after a disastrous payroll Friday) via “all hands” meetings called by the VP/Manager and one of the owners. The methodology of these was pretty much the same – the VP/Manager, out of frustration and exasperation and having spoken with the owner over the weekend, came in with a proposed change to which she tried to lead the rest of the group through leading questions. We all shared our perspectives and experience, but rarely in any sort of productive manner.
The Formal Authority method was then enacted, with the VP/Manager making the final decision on the new policy, sometimes taking our feedback into account, frequently not. The owner was usually there for support and a motivational talk after. Many decisions were just exhortations to enforce what was already supposed to be policy. Some definitely ranged into very contentious Decision by Minority situations (citing that a decision MUST be made because the decision-maker knew what was best), e.g. when we were all stripped of our Gmail account passwords and forced to use Outlook (as the marketing guy, this was really not helpful as all my applications and services synced with Gmail, usually through extensions). I think in this case, and others, the Decision by Minority was used to try to force habit changes, while making them universal to “not seem discriminatory” or something. Not surprisingly, these rarely worked out long-term. The turnover at this company is extremely high, also.