The Raiders are solidifying their defensive line by re-signing Zach Carter, who contributed 22 tackles and 1.5 sacks in the previous season. Carter, initially a third-round pick by the Bengals, joined the Raiders mid-season and showcased his potential, particularly in the final games where he tied his career-high in tackles. His retention, alongside Adam Butler and Malcolm Koonce, shows the team's commitment to building a formidable defensive front. The only remaining free agent from the rotation is John Jenkins, indicating a focused effort to maintain continuity on defense.