The 2005 NCAA conference realignment was initiated by the movement of three Big East Conference teams (Boston College, University of Miami, and Virginia Tech) to the Atlantic Coast Conference set into motion events that created a realignment in college football, as 23 teams changed conferences and Army became an independent.
In 2003 the Big East was put on watch as the ACC announced plans to expand from nine teams to twelve, which under NCAA rules would have enabled them to hold a special conference championship football game. Miami, Syracuse, and BC were rumored to be the three schools under consideration, and all three met with officials from the ACC regarding membership. At the same time, the Big East itself was contemplating its future.
Led by Connecticut Attorney General Richard Blumenthal, the football schools that would be left behind under this initial plan — UConn, Pittsburgh, Rutgers, Virginia Tech, and West Virginia — filed two lawsuits, one against the ACC, and the other against Miami and BC, accusing them of improper disclosure of confidential information and of conspiring to weaken the Big East. Syracuse was not named as a defendant in part because they made no public comments about the ongoing situation.
Leaked minutes of Big East meetings have shed light on the confusing process surrounding the defection of three of its members. At a summer meeting of the "football schools", following the announced departures of Miami and Virginia Tech, discussion among the Presidents and Athletic Directors of the remaining schools focused on a potential split into two conferences; an all-sports conference including football, and a second conference focused primarily on basketball. The idea of a 16-team superconference of both basketball and football schools was discussed, as was merging with Conference USA. Minutes of a July 9, 2003 meeting of presidents and athletic directors held before any detailed review of the conference's options show that Syracuse Athletic Director Jake Crouthamel and BC Athletic Director Gene DeFilippo went on record indicating they would resign their positions if the Big East expanded to 16 teams.