4. Dallas Cowboys
Dallas has had an elite offensive line unit for a long time, as Jerry Jones has been willing to invest in this group continually. Last year was no exception, as they allowed the second-lowest adjusted sack rate (4.3%) in the NFL. They were also maulers in the run game, averaging 134.6 rushing yards – fifth most in the league. The retirement of center Travis Frederick is undoubtedly going to hit this group hard. However, they added Tyler Biadasz in the draft which takes some of the sting out.