NFL free agency began on Monday with the legal negotiating window, and we've already seen a ton of offseason action -- including a few surprising moves. Sam Darnold, Justin Fields, DK Metcalf, Davante Adams, Josh Sweat, Milton Williams, Joey Bosa and D.J. Reed are among the biggest names who have changed teams via free agent signings and trades.

It's been an interesting year of NFL free agency; a lot of teams had money, but the talent pool was not necessarily deep enough to justify spending it. As a result, several teams opted to pay their own players more now and give themselves flexibility into the future.