My guess is the Front Office planned for this Sunday game to be a "bullpen" game, using Magill, Slegers, and Busenitz for a couple innings each, to pitch the game into the 7th. That would explain why Magill or Busenitz did not pitch yesterday. But if they knew Slegers was hurt and not going to pitch today, then why didn't they scrap the bullpen idea right away, and plan for Romero to be called up so Molitor could use his relief pitchers yesterday?