Which NFL Teams Improved the Most in Free Agency? Four Stand Out

The official 2026 calendar just started and the NFL still has that new-league-year smell.

Depending on what your favorite team did since player negotiations began on Monday and free agency opened on Wednesday, there's a great chance it will end up smelling like either fresh roses or rotten eggs 11 months from now after the confetti settles on Super Bowl LXI.

Last March, the Seattle Seahawks signed quarterback Sam Darnold to a three-year, $100 million contract and went on to win the Super Bowl. Meanwhile, the Baltimore Ravens mostly window shopped, missed the playoffs and ultimately said farewell to John Harbaugh, the most successful coach in franchise history

In March 2024, the Philadelphia Eagles locked up running back Saquon Barkley on a three-year, $37.75 million deal and then rode his historic 2,000-yard season to a Super Bowl championship. The Dallas Cowboys were the last team to sign anyone, kept their purse strings knotted and showed coach Mike McCarthy the door after a 7-10 season.

Who made the largest "Lombardi leaps" this week, keeping in mind that neither the 2025 Seahawks (10-7 during the previous season) nor 2024 Eagles (11-6 in 2023) needed massive makeovers? Who plugged the decisive pieces into their championship puzzles?

Four teams fit the mold. Two made playoff runs last season and two slipped from perennial AFC contenders to 6-11 records: the defending NFC West champion Los Angeles Rams and the NFC North champion Chicago Bears and the Cincinnati Bengals and Kansas City Chiefs.

The Rams fell short of the Big Game when they allowed Darnold to throw for 346 yards and three touchdowns in the Seahawks' 31-27 victory in the NFC Championship.

General manager Les Snead attacked the situation head-on this month, shelling out a combined $176 million to add ex-Chiefs cornerbacks Trent McDuffie and Jaylen Watson (who both own two Super Bowl rings) and also re-signing safety Kam Curl to a three-year, $36 million deal.

The Bears were 4-5 during the 2025 regular season when opponents averaged at least 6.0 yards per play (7-1 when foes were under that mark).

Seeking speed for Dennis Allen's defense, Chicago GM Ryan Poles signed former Seahawks safety Coby Bryant and replaced Tremaine Edmunds with former Browns linebacker Devin Bush. The Bears also solidified the defensive line with tackles Neville Gallimore and Kentavius Street.

The Bengals surrendered a franchise-record 492 points last season and finished 31st in total defense, including three games with more than 500 yards allowed.

Offsetting the departure of 31-year-old pass rusher Trey Hendrickson to the Ravens, Cincinnati got better by making former Chief Bryan Cook (another two-time champ) the highest-paid safety in franchise history and making former Seahawks linebacker Boye Mafe the franchise's first $20 million per year free agent.

The Chiefs' 10-year playoff streak ended last winter but the dynasty isn't dead as long as Patrick Mahomes has two healthy legs to stand on. If he returns early enough from a torn ACL, you can't count them out.

Sure, Kansas City lost a few key players, but GM Brett Veach signed reigning Super Bowl MVP running back Kenneth Walker III, veteran safety Alohi Gilman, defensive tackle Khyiris Tonga -- a solid backup for 31-year-old Chris Jones -- and wideout Tyquan Thornton. Tight end Travis Kelce also committed to another season, with the encouragement of Taylor Swift.

As for the rest, don't start burning jerseys if your team didn't make the cut here. There will be plenty more signings and trades before next month's draft. At the time of writing, A.J. Brown is still an Eagle, Kyler Murray is still on the market and Maxx Crosby is still not a Raven.