Being a member of any sort of group or team in Greece brings with it certain obligations.
Firstly, comes the obligation to bring to the group a distinctive contribution which is recognisably your own. Secondly is the obligation to recognise the boss as the leader and guiding spirit of the group.
Thus, team-working in Greece can be categorised as a group of individuals working on specific tasks, reporting to a central controlling figure. Information would tend to flow more naturally up to the boss rather than laterally to other team members.