Washington Nationals Manager Jim Riggleman had laid out countless scenarios for lineups since before spring training. He had pored over the statistics, sought advice from St. Louis Cardinals Manager Tony La Russa and consulted those within his organization. When the Nationals’ offense slipped to another level of impotence recently and the team was without veteran hitters Adam LaRoche and Ryan Zimmerman, Riggleman took two of his ideas and blended them into one.