[Dorienne]

1) The team leader basically runs all meetings, and all "polls" we have on things. Ex: what name we'll pick for the robot or something of the sort. The leader also finalizes any decisions the team itself makes, and pretty much tells everyone what needs to be done.
2) They are extremely important. To the team and overall. If it weren't for them, there would hardly be any order. We're as independent a team as possible, so if we didn't have a president, the whole team would be no more within a year or two. We try to make it as student-run and built (robotwise) as possible. So we do indeed need a team president.
3) The leader is picked by the advisor of the team, that being Mr. Mason, a teacher at our school (well, erm, duh.). However, if the vice president of the previous year was a junior, then they become president in the following year. if both vice president and president are seniors, then the teacher chooses who becomes president and vice president the following year.