EAST RUTHERFORD, N.J. Bill Parcells, smiling, had reason to be happy. Very happy. A day earlier, his New York Giants had completed a two-game sweep of Washington and Dallas in six days, putting them in a tie for the NFC East lead with the Redskins after nine games.Walking toward the locker room in the dank concourse under Giants Stadium, Parcells was happy about something else. Three things,...