You are not only the manager of your group, you’re also its leader, primary advocate, mood setter, chief bottle washer and of course its chief decision maker. That said, feel free to get input from your staff and/or other knowledgeable parties, but at the end of the day, the decision is yours and yours alone. In fact, if you try to be too nice and leave every decision to a department vote, you will be viewed as indecisive, weak, ineffective and an obstacle to getting things done. On a lighter note, the good news is that you get to call your department’s shots. Cool!