With an abundance of rookies and free agents providing meaningful contributions this season, the Dallas Cowboys’ 2013 roster is quite a bit different from the roster just 12 months ago. Injuries have forced many of the new faces into the lineup. Some have panned out, and others have not.
To judge the impact of the high-profile rookies and free-agent acquisitions, I’ll assign them a letter grade based on their performances at midseason. The grades will be generated using a combination of stats and film study, the stats coming from Pro Football Focus (subscription required), Advanced NFL Stats and my own research.