NFL free agency is set to begin on March 12, bringing pivotal decisions for the Detroit Lions regarding their eight biggest free agents. Carlton Davis, coming off a solid season with two interceptions and a notable performance, is expected to attract significant interest, making his return uncertain. Meanwhile, offensive guard Kevin Zeitler's success with a high run-blocking grade suggests the Lions will prioritize his re-signing as he may face less competition on the market.

Levi Onwuzurike is likely to stay, as he emerged as a valuable asset in his third season. Conversely, linebacker Derrick Barnes, who has struggled to establish consistency, may benefit from a fresh start elsewhere. Ifeatu Melifonwu, who showed promise in the previous season, is anticipated to find a new home after battling injuries. Finally, Tim Patrick's reliable production suggests he will likely stay with Detroit, along with fan-favorite Dan Skipper. However, edge rusher Marcus Davenport is expected to depart after underwhelming performances.

The Detroit Lions' approach to the NFL Draft under GM Brad Holmes emphasizes overall talent over positional needs, resulting in a slew of Pro Bowl and All-Pro players in recent years. As they prepare for the upcoming draft, they eye versatile linebacker Jihaad Campbell from Alabama. Having previously selected multiple Alabama players, the Lions could see Campbell as a fit to strengthen their linebacker corps, especially with the uncertainty surrounding Derrick Barnes' pending free agency.

Campbell showcases a high football IQ and a skill set that suggests he can fit various roles within a defense. With an impressive overall and specific defensive rating from Pro Football Focus, he boasts strong grades in coverage, run defense, and pass rush. Drawing upon his versatility, Campbell expresses excitement for the chance to prove his capabilities in the NFL, particularly in coverage, where he feels he can excel against receivers and tight ends.

In 2024, the Detroit Lions' defense faced overwhelming challenges, with significant injuries impacting key players like Aidan Hutchinson and Alim McNeill throughout the season. Despite a promising start, Hutchinson's season ended early due to a leg injury, disrupting the team's pass rush and forcing the Lions to trade for Za'Darius Smith to maintain production. The defense managed to secure a top run defense ranking, but finished poorly in pass rush metrics, averaging only 2.1 sacks per game.

The linebacker unit saw promise from rookie Jack Campbell, who performed well in his first year, especially after stepping up as a play-caller due to injuries to veterans like Alex Anzalone and Derrick Barnes. The secondary struggled with consistency as Carlton Davis and Amik Robertson joined the team, but injuries limited their potential. Despite these challenges, Kerby Joseph and Brian Branch shone as a formidable safety duo, helping the defense stay competitive.

Aaron Glenn has officially taken over as the head coach of the New York Jets, aiming to improve the team’s defense, which was ranked 20th last season. Glenn, formerly the defensive coordinator for the Detroit Lions, is expected to pursue several players from his previous squad as he looks to bolster the Jets' roster during the upcoming free agency.

Among the players most likely to join Glenn in New York are cornerback Carlton Davis, who enjoyed a solid year with two interceptions and 11 passes defensed, and edge rusher Marcus Davenport, though his injury history raises questions about his reliability. Defensive back Ifeatu Melifonwu, despite limited games last season, showed promise and could thrive under Glenn’s system. Lastly, linebacker Derrick Barnes, who has experience in Glenn's defensive schemes, might fill any gaps left by potential free agency departures.

The Detroit Lions find themselves at a critical juncture following a disappointing end to the 2024 season. To enhance their chances of playoff success, the organization has identified five key offseason needs. Starting from the least critical, the team is looking to bolster their linebacker depth, particularly with Derrick Barnes entering free agency. The defensive tackle position also requires attention, although Alim McNeill and DJ Reader are expected to return. At guard, the Lions need to replace Graham Glasgow, who struggled significantly last season, while Kevin Zeitler's unrestricted status adds urgency. The cornerback position remains a long-standing weakness, particularly if Carlton Davis departs in free agency. Most importantly, the Lions must seek a complementary edge rusher for Aidan Hutchinson, with Maxx Crosby emerging as a prime target to elevate their pass rush.