Leading, but not by much, Tony Romo and the Dallas Cowboys were desperately in need of a big play. Jake Delhomme helped them make several. Terence Newman returned an interception 27 yards for a lead-stretching touchdown with 5:07 left, then rookie linebacker Victor Butler got two sacks and forced a fumble on the next series, sending Dallas to a 21-7 victory over the Carolina Panthers on Monday…