I am very new to Umbraco and have not yet a mind set for it. Here I am asking for a direction/aproach to handling sections and section members. Let say a site is about a club which have different sections. Club members can belong to only one section (but can change sections on the go). Club members are not required to be site members, but as well, if registered, they should be allowed to update their profile.

Making 'Section document type' and nodes and 'Member document type' and member nodes seems to rigid as aproach with copying and removing members between sections. Editor should be able to select section when editing a member. 

Please help me with possible or best aproaches for similar setups.

I apology if I missed similar questons.