Google Apps Email Accounts

Hi,

I'm looking at setting up Google Apps for a Committee I am part of to make communication and managing meetings easier.  The members of committee can/will change every 2 to 3 years.  What would be the best way of managing/setting up accounts?

Would it be best to create specific personal email accounts for each committee member:

firstname.lastname@mycommitte.com etc, etc

and then create nicknames for each account like:

chairman@mycommittee.com forwards to the appropriate members
treasurer@mycommittee.com forwards to the appropriate members
secretary@mycommittee.com forwards to the appropriate members

or just create the accounts:

chairman@mycommittee.com
treasurer@mycommittee.com
secretary@mycommittee.com

and give the appropriate members access to them?

What I’m trying to achieve is that when a member steps down form a position the new members taking over can have access to still to previous emails so that they are aware of things which have happened.  Hope this makes sense and I look forward to a response.