I'd have to agree with Koko Ed, even if the mentor doesn't know what they're doing it isn't cool to bash them in public because they're giving up their time to help out.
We have a mentor on our team that admits that he doesn't know what he's doing but he comes to every meeting he can to offer his ideas and help out. Even though his ideas may not be great sometimes, they can either give us an idea of where we want to go with something or where we want to stay away from and it allows us to narrow our focus in on what we want to do. As far as the mentor being "bossy", you may want to talk with them about it.
Back on the original subject though... this year's web team had like 3 people I think. I did all the JSP scripting and about half of the HTML, Kerstie did the other half of the HTML, and Nick did a lot of the graphics work.
http://www.blarglefish.com