The NFL's free agency period has kicked off with teams scrambling to improve their rosters. This year saw some significant moves, including players switching teams and others signing lucrative extensions. Historical context plays a crucial role, with clubs like the Philadelphia Eagles rebounding after a rough season with smart acquisitions, while others have faced dire consequences from past free agency blunders. The rankings of the top 10 free agency signings since the 2020 season reflect player performance, team impact, and contract value. For instance, Tom Brady's move to the Tampa Bay Buccaneers stands out not only for his immediate success but also for redefining the team's culture.