At one point in time, the Dallas Cowboys had the top offensive line in the NFL when Tyron Smith, Zack Martin, and Travis Frederick were leading the charge. Injuries to Smith and the retirement of Frederick have caused Dallas to dip a bit when it comes to the better offensive line units across the league.
There's been a drop-off, but per Pro Football Focus, the Cowboys offensive line still ranks among the best as they came in as the 10th-ranked unit of its kind in the NFL.
10. Dallas Cowboys
Although the Cowboys’ offensive line had been among the five best units in the league for years, that position is in jeopardy going forward.