As the Detroit Lions gear up for the 2025 NFL season, they’re navigating through substantial changes—not just on the roster but within their coaching staff as well. Both Ben Johnson and Aaron Glenn departed to take head coaching positions elsewhere, bringing several assistants with them. That leaves head coach Dan Campbell surrounded by a new group of coordinators and support staff.
On the positive side, a core group of players returns from a squad that reached the NFC Championship in 2023 and posted an impressive 15-2 mark the following year. Still, the team was dealt a significant blow this offseason when a key leader decided to call it a career.
Though the departure was on good terms, it leaves Detroit with a major void as camp approaches.
Ragnow’s Exit Leaves Big Shoes to Fill at Center
The offensive line suffered a serious hit when veteran center Frank Ragnow announced his retirement on June 2. A seven-year pro, Ragnow earned four Pro Bowl nods and was named second-team All-Pro three times, solidifying himself as one of the premier centers in the NFL. Despite still being in his prime at 29, he stepped away from the game to prioritize his long-term health.
His toughness was legendary—he once played through a fractured throat—but the Lions now face the challenge of replacing a foundational piece of their offensive front. Adding to the issue is the offseason loss of starting right guard Kevin Zeitler, meaning Detroit has to rework nearly the entire interior of its line.
This hits especially hard given the Lions’ identity. While the team boasts explosive talent like Amon-Ra St. Brown, Jahmyr Gibbs, and Jameson Williams, the franchise’s rebuild under Campbell began in the trenches. Offensive tackle Penei Sewell was Campbell’s first draft selection in 2021, while left tackle Taylor Decker has been anchoring the edge since 2016. But the middle of the line has become increasingly unsettled.
Now, with Ragnow stepping away, the biggest concern is who takes over at center.
Although the timing of Ragnow’s decision caught some off guard, general manager Brad Holmes appeared to have anticipated the possibility. In April’s draft, the team selected Georgia guard Tate Ratledge in Round 2. Ratledge, who played exclusively at guard in college, began getting reps at center during rookie minicamp in May—perhaps a sign of what was to come. With Ragnow officially gone, Ratledge could be thrust into a starting role immediately, though he may face a steep learning curve.
At guard, Graham Glasgow is likely to lock down the right side in Zeitler’s absence. On the left, rookie Christian Mahogany will likely compete with fellow newcomer Miles Fraizer, a fifth-round selection. Heading into OTAs, the team had just one spot open along the interior; now all three could be up for grabs in camp.
Detroit has developed a reputation for nurturing offensive line talent in recent years, so there’s reason for optimism. Still, the loss of Ragnow adds an unexpected complication—one that could shape the early narrative of their 2025 season.
