The Bilikens were a charter member of Conference USA in 1995 , but left to join the A10 in 2005 . By the time Saint Louis left C-USA , it was one of four members of the conference without football programs . The other three also left C-USA in 2005 . Charlotte , which joined the A10 at alongside SLU , returned to C-USA in 2013 , the same year it launched a football program ( becoming the only one of the four schools that now plays football ) . DePaul and Marquette both left for the Big East Conference , and in 2013 became two of the " Catholic 7 " that formed the core of the reconfigured Big East Conference
Big East Conference
Big East Conference (1979–2013)
Saint Louis Billikens