[Eric Bareiss]

If this is truly what you say it is; then you need to talk to this person, get at least three students from your team that feel the same way. Preferrably a teacher should be there. Sit them down and politely say that would like them to step down and leave the team or drastically reduce his role on the team.

The key is going to be leaving it at that. DO NOT threaten or accuse them, this will lead to arguing. They will get mad and yell so you can't. You have to stay calm and stand your ground. Don't say anything specific. Just say that some of you would like them to leave the team.

You are the student and it is your team. If someone is ruining your FIRST experience you have the right to ask them to leave. Keep in mind you must know that a majority of your team must feel the same way as you before you should do this.