The 2014 NFL Draft was a bonanza for wide receivers, and this offseason could be the same in the free-agent market — including quite a few guys who aren’t even free agents yet.

Here’s a look at some potential trade candidates/salary cap casualties at wide receiver who may come onto the market this spring even though they’re currently under contract.

Vincent Jackson

It will be somewhat of a surprise if Vincent Jackson is still wearing a Tampa Bay Buccaneers uniform next season. The only question is which form his departure will take.

Tampa would obviously like to get something in return for the 6-foot-5, 230-pound deep threat. With the amount of rebuilding there is to be done in Tampa, parlaying him into draft picks would be ideal. Doing so will require multiple suitors so they can leverage the fact another team could pick Jackson up if he is released.

Jackson carries a $12.2 million cap hit next season.

Brandon Marshall

There’s a reason Brandon Marshall has already been on three different teams despite his massive talent. It’s the same reason he’s likely to be on a fourth next season — his act wears thin quickly.

New general manager Ryan Pace and coach John Fox have a massive task ahead of them when it comes to fixing a culture that went way south last season. Cutting Marshall, who got into it with teammates at times last year, may be the first major symbolic step in that process. The Bears would take a $5.6 million cap hit if they pull the trigger before March 13. Otherwise, they’ll owe him $7.5 million next year.

Mike Wallace

See Brandon Marshall.

Wallace is a talented head case. He grabbed 10 touchdowns in 2014, but ended the year on the bench after getting in an argument with coaches during Week 17’s game against the Jets.

Perhaps the only thing that leads one to believe Wallace will be back in electric aqua next season (is that what that color is?) is the structure of his contract. If he’s still on the roster after March 10, Miami would take a $9.6 million cap hit. You can’t afford to give away that much money to a guy who isn’t there.

Percy Harvin

Mike Wallace + Brandon Marshall x 100 = Percy Harvin.

The Human Migraine was run out of Seattle, and as expected he didn’t do much to help a Jets offense so impotent that it couldn’t be fixed with four pounds of Viagra.

It’s possible new coach Todd Bowles has a use for Harvin. But consider this — if he’s still on New York’s roster March 19, the Jets owe Seattle a fourth-round pick. If he’s gone by then, it’s only a sixth-rounder.

Combine that with the fact he’s owed $10.5 million, it seems safe to say Harvin’s time with Gang Green will end with a whimper.

Larry Fitzgerald

It’s always difficult to picture the face of a franchise in a different uniform, but it happens. Joe Namath was a Ram. Jerry Rice was a Raider. Franco Harris was a Seahawk. These things happen.

One thing is certain — if Fitzgerald is to stay a Cardinal, his salary will have to be restructured. The Cardinals are on the hook to pay him $15 milion next year and take a $23.6 million cap hit. That is a lot of money to sink into a wide receiver over a decade into his career, even if he’s one of the best of his generation.

Arizona wants to keep him, but if Fitzgerald wants to move elsewhere — and after playing part of a season with Ryan Lindley, it would be understandable if he wanted to be someplace no nearer to Arizona than Luxembourg — they’ll have to cut him by March 17.

Dwayne Bowe

Like every other receiver on the Chiefs roster, Bowe didn’t catch a single touchdown pass last season. As a result, Kansas City would like to pay him less money than it currently owes him. Bowe carries an insane $14 million cap hit this year, and he’s out of his mind if he think Kansas City will actually give him that kind of money.

It seems likely Bowe will be on the market, but with his lackluster stats and one-game suspension to open last year, it’s hard to imagine anyone offering him more money than the Chiefs would even in a restructured deal.

Marques Colston

It’s time for the Saints to go Old Yeller on a long-time fan favorite.

Colston is coming off the worst year of his career, and is owed $7 million from a team that needs to clear up between $20-30 million in salary cap space.

New Orleans has some solid younger receivers around Drew Brees, though none with Colston’s size. If he’s back in the Big Easy next year, it will be at a greatly reduced price. The team has pulled off similar moves before with the likes of Deuce McAllister, so it can’t be ruled out.

Greg Jennings

Another case where the team is likely willing to take a guy back, but not for that price tag.
Jennings has an $11 million cap hit this year, which simply isn’t worth it for a guy who caught 59 passes for 742 yards.

Jennings has raved about playing with Teddy Bridgewater, so it’s he could be amenable to a contract restructuring. Of course, when he was faced with the same situation in Green Bay, he bolted for more money with the Vikings.