The 2004 crews haven't been announced yet. Here is the site to check:
http://mlb.mlb.com/NASApp/mlb/mlb/of...ires/index.jsp
This is the only announcement to date:
"01/21/2004 2:04 PM ET
Charlie Reliford named Crew Chief
Charlie Reliford, a member of the Major League Baseball Umpire Staff since 1991, has been promoted to Crew Chief to fill the vacancy created after Steve Rippley's December 31, 2003 retirement as a Major League umpire, it was announced today."
Bob