The Pittsburgh Steelers defense in 2019 allowed 314 completed passes on 514 attempts against them for 3113 yards, with 23 touchdowns allowed to 20 interceptions, allowing a net yards allowed per attempt figure of 5.5. outside of the number of touchdowns allowed, those numbers across the board ranked comfortably within the top five in the league.
So it seems appropriate that Pro Football Focus ranked the Steelers fifth in the NFL for the 2019 season in terms of their secondary. They made two major additions to the back end last season, starting with the free agent signing of Steven Nelson back in March.