The AFC East saw a bit of a shakeup during the offseason, with Tom Brady leaving the New England Patriots in free agency. After 20 seasons with the Patriots, Brady chose to take his talents to the Tampa Bay Buccaneers.

Upon Brady's exit from the division, the Buffalo Bills were able to complete a trade for Stefon Diggs. By acquiring Diggs from the Minnesota Vikings, the Bills are going all-in to win the AFC East with Josh Allen under center.

Of all 32 teams in the NFL, the Miami Dolphins likely saw the most changeover during the offseason — and understandably so. With over $100 million in cap space and plenty of draft picks, the Dolphins will have a new-look roster in 2020.

Similar to Buffalo, the New York Jets believe they have what it takes to win the division with Sam Darnold leading the offense. Even though it's only his second year, Adam Gase is already on the hot seat in New York heading into next season.

Regardless of the moves that have already been conducted, the teams in the AFC East could still have something up their sleeves. With that in mind, here is one player each AFC East team could trade before the 2020 NFL season.

Buffalo Bills — T.J. Yeldon

Last offseason, the Bills selected Devin Singletary in the third round of the 2019 NFL Draft. As a rookie, Singletary — for the most part — shared the workload with veteran Frank Gore.

Throughout the offseason, Buffalo has expressed their confidence in Singletary being the starter and they also drafted Zack Moss in the 2020 NFL Draft. Taking that into consideration, T.J. Yeldon could be dealt before the Bills take the field in 2020.

Yeldon signed a two-year, $3.2 million contract with Buffalo last offseason, with the idea he'd have a decent-sized role. Even after a season where he had just 30 touches, Yeldon is still 26 years old. Maybe a team that suffers an injury at running back could make a move for him.

Miami Dolphins — Josh Rosen

It's safe to say that out of the quarterbacks in the 2018 NFL Draft, Josh Rosen has been dealt the worst hand. Once he was selected with the No. 10 pick in the draft by the Arizona Cardinals, Rosen was joining a team with a new regime in place.

However, that regime quickly crumbled with Steve Wilks being fired after one season and Arizona ridding of their offensive coaching staff. Then, just a year after being taken by the Cardinals, Rosen was traded to the Dolphins after the Cardinals chose Kyler Murray with the No. 1 pick in the 2019 NFL Draft.

Now, Rosen finds himself in a less-than-ideal situation, sitting behind Ryan Fitzpatrick and Tua Tagovailoa. Not long ago, there were reports that Miami has been receiving calls for Rosen's services. A team that is looking for a low-risk, high-reward young quarterback could likely acquire Rosen for fairly cheap.

New England Patriots — Mohamed Sanu

It was evident that the AFC-East division winner's offense wasn't going to be able to find their footing during last season. While the offense was sputtering, New England chose to make a move for Mohamed Sanu ahead of the trade deadline.

As a matter of fact, the Patriots actually gave up a second-round pick for the veteran wide receiver. Fast forward to now and New England has added Damiere Byrd and Marquise Lee to the receiving corps. Not to mention, N'Keal Harry, Jakobi Meyers, Matthew Slater, and Gunner Olszewski also fill out the depth chart.

With Sanu entering the final year of his contract, the Patriots could look to recoup as much as they can after giving up a second-round pick for him. However, it is uncertain what type of return New England could get for Sanu at this point.

New York Jets — Avery Williamson

Just last offseason, the Jets attempted to bolster the linebacker position by adding C.J. Mosley. Unfortunately, the Pro Bowl linebacker was unable to stay healthy, missing 14 games in his debut season in New York.

Nevertheless, with Mosley returning, the Jets also bolstered the position this offseason by adding Patrick Onwuasor. In addition, Blake Cashman figures to see an increased role with New York in his second season.

All that being said, veteran Avery Williamson could become a cap casualty or even a trade piece for the Jets. Williamson is entering the final year of his contract and would free up $6.5 million in the event that he's traded or released.