These are the supplements for FCPS coaches and club sponsors. If you are a first year coach, i.e. basketball you will get paid the same amount as a 20 year coach. Most sports have supplemented positions for assistants as well.
http://www.boarddocs.com/vsba/fairfax/Board.nsf/goto?open&id=71BF43183BBF99D58525706E006800B6