By Madeline Coleman Ten schools will remain in the Power Five conference after USC and UCLA leave for the Big Ten. The Pac-12 released its second statement since news broke that USC and UCLA were leaving the conference for the Big Ten, this time touching on the idea of expanding. “The Pac-12 Board of Directors met this morning and authorized the Conference to explore all expansion options. The 10 university presidents and chancellors remain committed to a shared mission of academic and athletic excellence on behalf of our student-athletes.” The Big Ten officially voted to add the two Californi…