Fantasy Impact: Phillip Rivers' arrival in Indianapolis will finally gift him the luxury of an elite offensive line. Rivers, who is now entering his age-39 season, never boasted mobility as one of his top traits, but standouts Quenton Nelson, Branden Smith and Anthony Castonzo should provide more than enough stability to keep him consistently outright. The Colts' unit has a tremendous floor and a ceiling of being the team's top protective front.
Fantasy Impact: Boasting what's arguably the best tackle duo in the league - Terron Armstead and Ryan Ramczyk - the Saints could probably get away with substandard play on the interior line. However, they've instead been gifted with solid starters all around, with 2019 second-round pick Erik McCoy proving to be a reliable starting center during his rookie season. With left guard Andrus Peat re-signed long term and right guard Larry Warford still under contract, the Saints are poised to return all five starters on a unit that was one of the league's best in 2019. Should the play of either guard decline, however, first-round rookie Cesar Ruiz projects as an option to immediately step into the lineup.
Fantasy Impact: The Cowboys tried to avoid attrition to the offensive front, but their plan was ruined when star center Travis Frederick decided to retire. The team still has a trio of standout blockers in Tyron Smith, Zack Martin and La'El Collins, but the center and left guard spots appear far less stable, especially with 2018 second-round pick Connor Williams rehabbing from the torn ACL he suffered on Thanksgiving.
Fantasy Impact: One of the biggest risers in 2019, Tennessee's offensive line appears to have finally put it all together and begun playing to the level of the unit's tremendous talent. The group proved phenomenal at run blocking during the 2019 playoffs, and it'll come down to solid protection up front to facilitate the team's run-first gameplan again in 2020. Standout RT Jack Conklin left for Cleveland in free agency, but the Titans have a solid replacement lined up in rookie first-round pick Isaiah Wilson, and exceptional depth in Dennis Kelly. On the other side, LT Taylor Lewan and LG Rodger Saffold rank among the league's best at their respective positions.