Should Dodgers deal excess arms?

We've discussed quite a bit here at Rumor Central the idea that the Los Angeles Dodgers could trade a starting pitcher this offseason. The club signed two free agent starters since the end of the 2012 season and already had six when the season ended, thanks to the trade with the Boston Red Sox that resulted in Josh Beckett donning blue and white. First grade math says that's eight starting pitcher candidates, and the modern game suggests they only need five.