Frank Ragnow’s retirement in June 2025 and Kevin Zeitler’s departure in free agency forced Detroit to rebuild its interior offensive line on the fly, and the effect showed up all season for the Detroit Lions. Detroit still scored 481 points and Jared Goff threw for 4,564 yards, but the line gave up 39 sacks, the interior did not match its previous standard, and stabilizing that group now sits at the center of the 2026 roster build, as reflected in the season review and the leaguewide 2026 team outlook.
Detroit entered the season replacing two veteran interior starters at once. Dan Campbell acknowledged right after Ragnow’s decision that the offensive line was in worse shape without him, a reality that framed the entire summer and fall when Ragnow retired.
The Lions never found an early camp answer inside
The first training-camp plan put rookie Tate Ratledge at center for most of his early work while Detroit sorted through Ragnow’s vacancy during camp. That alone showed how much ground the Lions had to cover before Week 1.
Later in camp, the Lions shifted Graham Glasgow to center and moved Ratledge to right guard in another camp adjustment. Christian Mahogany stayed in the mix, giving Detroit a younger interior but not a settled one.
Detroit did not just replace one retired center. The Lions reworked the middle of the line while trying to sort out center and right guard at the same time.
The offense produced, but the interior stopped carrying the unit
The numbers on the scoreboard stayed strong. Detroit finished with 481 points, and Goff still posted 4,564 passing yards over the full season.
The drop-off came in the place Lions fans had grown used to trusting most. Detroit’s review of the position group said the team had three new interior starters in 2025, seven interior linemen played significant snaps, and the overall quality inside did not replicate the success of earlier seasons after the reshuffle.
Protection numbers backed that up. The Lions allowed 39 sacks in the regular season, with 10.5 charged to interior blockers, and the team’s sack EPA landed at its worst level since 2017 in the line review and in the 2026 roster assessment.
Continuity became the real problem
Detroit cycled through 11 different offensive line starters in 2025, tied for second-most in the league. Thirteen offensive linemen logged snaps, tied for the most, a clear sign that the Lions spent the year managing instability instead of playing behind a fixed front five throughout the season.
For this offense, interior churn hits the middle of everything. Goff wins from timing, structure, and clean movement inside the pocket, so center and guard turnover affects protections, communication, and how firm the pocket looks right in front of him.
Detroit still moved the ball because the offense had enough skill talent and design to survive. The Lions offensive line just stopped being the weekly advantage it had been in earlier years.
Why 2026 keeps coming back to the interior
A 9-8 finish pushed the offensive line to the top of Detroit’s 2026 to-do list after the season. That tracks with how the roster changed once Ragnow retired and Zeitler left. The Lions did not lose offensive competence, but they did lose the interior stability that used to let this system breathe.
The next step is straightforward. Detroit needs Glasgow, Ratledge, and Mahogany to either lock down those spots or force a new plan before the 2026 season gets rolling. After using seven interior linemen for significant snaps in 2025, the clearest question for 2026 is whether the Lions finally have a center-guard combination they can leave alone for an entire season.
