The Atlantic Coast Conference has extended its northern reach, adding Pittsburgh and Syracuse. Now the question becomes, will the league stop there, or keep growing to 16? The ACC announced Sunday that its council of presidents unanimously voted to accept those two schools, a move that increases its membership to 14 and sends the Big East scrambling, again, to replace two of its cornerstone programs. “We are constantly evaluating the competitive landscape to ensure the conference’s viability for years to come, and this, I believe, has staying power,” ACC Commissioner John Swofford said on a conference call.