But before we look ahead to what they need to do in the draft and free agency, let's take a look back at the 2013 season and how each player graded out.
The grades are based on the 2013 season only and were done by taking into account preseason expectations compared to the regular-season performance.
For example, the fact that Dannell Ellerbe and Philip Wheeler were two major offseason acquisitions and played poorly hurts them a lot more than if they entered the season with little to no expectations (as they likely will next year).
On the other hand, seventh-round pick Don Jones didn't make a major impact but played decent on special teams and performed better than anyone would have expected before the season began, which in turn gives him a solid grade for the year.
With that said, let's get to the grades working our way up from lowest to highest.
Unless otherwise noted, all stats come from Pro Football Focus (subscription required).