The Big 12 board of directors has formed a committee to discuss schools that could replace Texas A&M if the Aggies leave the league as expected.  Missouri Chancellor Brady Deaton, who serves as the board chairman, said Tuesday that the committee could also address the possibility of expanding the conference even if Texas A&M stays put.
     The Aggies are interested in joining the Southeastern Conference and they received a letter from Big 12 Commissioner Dan Beebe on Monday outlining the withdrawal procedure if they decide to leave.  Deaton says the Big 12 board has not received notification that the Aggies plan to leave.