The Atlantic 10 has discussed the possibility of a 21-team basketball league in the event that the changing conference landscape makes high-profile Big East schools available, a source with direct knowledge of the situation told ESPN.com Tuesday. The A-10 has been proactive during the past year, strengthening its brand as a high-profile basketball conference with the additions of Butler and VCU, two programs that were in the 2011 Final Four. The A-10 is a 16-team conference for the 2012-13 season, but Temple and Charlotte are set to leave for the Big East and Conference USA, respectively. The 21-team model would occur if the A-10 were to add the seven Big East Catholic schools (Marquette, DePaul, Georgetown, Providence, Seton Hall, St. John's and Villanova) that met Sunday in New York with Big East commissioner Mike Aresco to go over their options. Read more http://espn.go.com/mens-college-bas...ll-schools-creating-21-team-conference-source