The role of a leader within a team

What do you feel is the role of a leader within a team? Include examples of leadership you have experienced when working on teams. You might have experience making decisions and solving problems on your own, but these tasks are quite different when working in a team. What would you need to consider when leading a team in making decisions and solving problems? How can you apply what you learned in this class when faced with a problem or conflict in a team setting?