As NFL free agency grinds on, it's becoming apparent which teams have made gains, and, well, which ones haven't.

Here's a quick look at which teams have gained ground, and those who've lost it.

Winners


New England Patriots

The Pats literally came out of nowhere, signing tight ends Jonnu Smith and Hunter Henry, and wide receivers Nelson Agholor and Kendrick Bourne.

They also brought back ILB Kyle van Noy and signed OLB Matt Judon. Safety Jalen Mills was another fine addition. Now, if they could just find a good starting quarterback. The signing of Cam Newton is still a head-scratcher.

Washington Football Team

First, they filled their hole at quarterback by signing gunslinger Ryan Fitzpatrick. Then, they quietly added WR Curtis Samuel, formerly of the Carolina Panthers.

Fitzpatrick now has another target to play catch with; that makes for a more dynamic offense. With more rest, Washington's killer defense figures to be that much better. That's bad news for opposing teams.


New York Giants

Perhaps noting Washington's improvements, the Giants responded by signing WR Kenny Golladay, WR John Ross, TE Kyle Rudolph to bolster their offense. 

They also brought in linebackers Devante Downs and Ryan Anderson as well as DE Ifeadi Odenigbo.

The upshot of these signings? The Giants are going to be much more formidable on both sides of the ball once the hitting starts for real.


Buffalo Bills

Don't look now, but the Bills got deeper on offense. Granted, they lost WR John Brown to Las Vegas. No problem, as they replaced him with veteran wideout Emmanuel Sanders.

They then added QB Mitchell Trubisky to back up their all-world starter, Josh Allen. The upgrades at quarterback and wide receiver have positioned Buffalo nicely for a run at another division title.


Cincinnati Bengals

With the addition of DE Trey Hendrickson, CB Chidobe Awuzie and DT Larry Ogunjobi, the Bengals' defense looks more formidable.

Their rising star at quarterback, Joe Burrow, will also appreciate the signing of LT Riley Reiff, who has been charged with the responsibility of protecting his blind side.


Arizona Cardinals

While it's not a move that will prompt oohs and ahs from the Cards' faithful, they solidified their field goal kicking with the signing of veteran K Matt Prater, who bolted from the Detroit Lions.

Add Prater to the signings of DE J.J. Watt, WR A.J. Green, and offensive lineman Brian Winters - and the acquisition of OL Rodney Hudson from the Raiders - and the Cards are a much deeper, more talented team.


Dallas Cowboys

Securing QB Dak Prescott was huge for the Cowboys. They now have a cornerstone around which to build their offense, and team.

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Losers

Seattle Seahawks

The weapons surrounding QB Russell Wilson just keep disappearing. First, WR David Moore and RB Carlos Hyde quietly exited Seattle.

Now, TE Jacob Hollister is gone.

Russ is going to find it very difficult to cook with inadequate protection - and, now, a glaring lack of weapons around him.


New Orleans Saints

While it might be a little harsh to say the Saints are a shell of the team they used to be, things aren't looking good in the Big Easy.

Legendary QB Drew Brees retired. Then TE Jared Cook and WR Emmanuel Sanders were let go due to salary cap issues.

Now, their defense is minus DE Trey Hendrickson, and cornerbacks Janoris Jenkins and Justin Hardee.

Coach Sean Payton has his work cut out for him.


San Francisco 49ers

The only thing the 'Niners have done during free agency is lose players.

So far, DE Kerry Hyder, WR Kendrick Bourne, DE Solomon Thomas, RB Trevin Coleman and CB Ahkello Witherspoon have found employment elsewhere. Who's next?