Powers of chair of Community Group

At the last Community Council group, there started a discussion over 
chairing. Right now, we don't have a very clear chairing mechanism and 
they have no special powers. Therefore, I think we should figure out 
what the chairing powers are.

Powers I heard suggested:

1) Ability to customize home-page (we'd need to do something with 
WordPress admin for this, not sure how easy that will be)

2) Ability to remove people from mailing list (we'd need a form for this).

Any others?

Also, there was a request that groups be able to call the chair 
something else if they wanted, like "Co-ordinator" or "Beta". I'm 
thinking we should max groups out at 3 possible co-chairs.

There also needs I would assume to be some way for the current chair to 
"pass" chairing on to another person in an automatic fashion.

    cheers,
         harry