Entering the 2017 season, the unquestioned strength of the Dallas Cowboys was the team’s powerful running game driven in large part by an All-World offensive line. The core of that unit is the team’s three first-round draft picks, Tyron Smith (2011), Travis Frederick (2013) and Zack Martin (2014).
Each of the three has been an elite performer since entering the NFL. This is true regardless of what metric you choose to measure them. Pro Football Reference uses “approximate value” as a simple, rudimentary grading metric. Approximate value (AV) is a counting metric, meaning the more a player plays the higher his potential number.