How is your team structured?

[nickbrickmaster]

My team has historically had a single captain, with a single tier of sub-team captains, with authority over the students in their sub-team. These roles are ill-defined, and leave some students thrust into leadership positions. We've been thinking about how effective this is for our situation, and what could be done better. So I pose this question to all of you:

How is your team structured?

Do you have a captain, a president, multiple co-captains, a supreme dictator, or do you have no student leadership at all? Do you have a flat structure, where everyone is equal rank, or many sub-tiers of captains, nested almost fractally?

In addition, how effective is this structure? How many students do you have?

If you have "job descriptions" so to speak, for these leadership positions, please share. What responsibilities are prescribed to them? Are these positions elected, volunteered, or mentor-chosen?

I'm generally thinking about students when I ask this question, but feel free to share how mentors fit in.