The Steelers transitioned away from a veteran offensive line group after the 2020 season, with retirements and expiring contracts breaking up a group which had played together for years. The 2021 offensive line had three players who had never played for the Steelers, two of which were rookies, and two players who had only started as injury replacements. That’s a big change from the level of continuity the original starters in 2020 had. The Steelers line struggled, and while it showed signs of real improvement for the weeks before Kevin Dotson’s injury, the Steelers line ended the season as one of the weaker lines in the NFL.