Decisions, decisions. San Diego State suddenly finds itself back in the market for a sports conference, barely a year after announcing it would leave the Mountain West next summer for the Big East in football and Big West in everything else. Technically, nothing has changed; SDSU is still leaving the Mountain West after the current academic year. In reality, everything has. Boise State, its western partner in the jump to the Big East, announced it is staying in the Mountain West, and even