The commitee approach has worked thus far. Use them all, Marte, Shingo, Hermanson, etc......... Go with the match-ups, use Vizcaino or Politte one day if you have too, whatever wins the damn game.
Just for the record, I'm not down on Shingo yet. This guy is the career saves leader in Japan. He knows how to pitch, I think he'll work through this.