The Dodgers have a pretty thin bench. When guys like Skip Schumaker and Jerry Hairston are the best the team has to offer, something needs to be done.
For all the corner outfielder/first basemen the Dodgers had in recent years, that's where they're lacking right now. Despite acquiring Schumaker, the Dodgers might still need a legitimate center fielder. Tony Gwynn might be that guy, as he's under contract for 2013. However, the Dodgers don't appear to have much faith in him because of his bat -- or lack thereof.
The premiere bench player available on the free agent market is Scott Hairston. He hit .263/.299/.504 with 20 home runs in 398 plate appearances. While the batting average and on-base percentage leave a lot to be desired, that .504 slugging mark is fantastic. Unfortunately, the Dodgers don't appear to have any interest in him.
As far as an infielder, Jeff Baker might be worth a look. He owns a .296/.344/.498 triple slash against southpaws in his career. Baker ca...