ARLINGTON, Texas — Fire ‘em. Cut em’. Pink slip ‘em. Put ‘em up for adoption. Send ‘em to the in-laws. Pick your player, coach or favorite GM, and there is not a single member of the Dallas Cowboys who does not deserve to be dropped into a Texas State Fair-sized pot of hot grease for what went down on Sunday afternoon at AT&T Stadium. This was historic; the worst day in the history of the Cowboys in Jerry Jones’ tenure. That covers a lot of ground, and so much ugly, too. Nothing has ever been as ugly as this. Because this time “it’s going to be different,” and not only was it not different it …