Even though the Philadelphia Phillies have been eliminated from the playoffs early (again), there are still four teams battling it out. While the Phillies and 25 other teams have already begun their offseason preparations, the start of Major League Baseball's offseason won't officially begin until after the World Series concludes.
MLB free agency league-wide will open five days after the final out of the World Series. In those five days the Phillies will have exclusive rights to talk to their free agents. If they can't get a deal worked out with their players in that five-day window, it's open season for every other team in the majors.