Panthers strengthened defense with Phillips, Lloyd.
Raiders made strategic signings to meet salary floor.
Free agency impacts team performance and draft strategy.

Atlas AI
Five National Football League (NFL) teams significantly improved their rosters during the 2026 free agency period, while four teams experienced setbacks, according to an analysis published on March 12, 2026. The Carolina Panthers, Las Vegas Raiders, and Miami Dolphins were identified among the top improvers. The Panthers notably signed edge rusher Jaelan Phillips and linebacker Devin Lloyd, addressing key defensive needs and providing flexibility for the upcoming NFL Draft.
Phillips' presence is expected to enhance the performance of defensive tackle Derrick Brown, who was frequently double-teamed in the 2025 season. Lloyd's acquisition aims to stabilize the linebacker position, which has been a concern since Frankie Luvu's departure.
The Las Vegas Raiders, despite needing to meet the salary floor, made several strategic signings. Their acquisition of centers Tyler Linderbaum, linebackers Nakobe Dean and Quay Walker, and defensive end Kwity Paye are expected to improve both on-field performance and team culture. The Raiders' moves are projected to enhance their running game and reduce explosive plays conceded. The Miami Dolphins also made significant roster adjustments during this period.
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