Preferred Versus Non-Preferred Tasks
Skills and talent do not always match up with personal agendas. People are not always skilled at the roles that they dream of fulfilling. A good teammate recognizes the need he can best meet to achieve the team goals and makes that his agenda. A selfish teammate fights for the spot that he wants to fill.
Anyone can be passionate about tasks that they prefer. Great teammates are diligent to anticipate the non-preferred tasks that will stand in the way of achieving the team goals and be diligent to knock them out with the same passion.