There are few starting jobs that are up for grabs with the Dallas Cowboys. For the most part, that is a good thing. There are plenty of very good, even great players on the roster, like Dak Prescott, Micah Parsons, Zack Martin, and Trevon Diggs, just to name a few. But the ability to continue to perform at a high level as a team in the NFL often hinges on who is available to step in when the inevitable injuries crop up. Last year, we saw Ezekiel Elliott’s performance suddenly drop when he was hurt in the first New York Giants game.