Editor's note: The following story is part of SportsDay's 2018 Cowboys Preview, included in Thursday editions of The Dallas Morning News this week. To subscribe to SportsDayDFW.com for all the latest news about your team this season, click here.
There are several ways to rank an NFL roster. One would be to put the players in order of talent, which is the most difficult because of the number of positions.
How do you determine if a defensive tackle is more talented than a kicker?
Another way is to rank the players in terms of value to the team.