Are Cubs Looking For a Righthanded Starting Pitcher?

With all the rumors flying around, I have to wonder if the Cubs are discussing adding a righthanded pitcher to the rotation. I highly doubt they feel comfortable with Lilly, Hill, and Marshall in the rotation. Lilly obviously is safe, and dealing Hill would be idiotic. At the same time, Marshall shows signs of being a quality big league pitcher, but teams rarely stick with 3 lefty starters. If they were to entertain adding Marshall to a package they might be able to pick up a solid right handed starter, ala Jon Garland or perhaps Aaron Harang, or don't rule out Bronson Arroyo. While Arroyo has struggled this season, he has put together some pretty solid starts against the Cubs the last two seasons. Don't think Jim Hendry hasn't noticed that.