You, of course, never do this. You are totally objective and above all such pettiness.
In the last post, I covered whether to deal with underground, and often incorrect, employee perceptions. I think you need to as a manager and doing so will help address one of the most pernicious undercurrents: groupthink/group conformity.
In the previous set of posts (The Dark Side of Work Revealed), we discussed how undercurrents or crosscurrents in the workplace, such as power, groupthink, and lying, can affect your work life and career.