NFL Trade Rumors: Power Ranking the 10 Best at Each Position on the Block

One trade can swing the hands of fate, turning your team from a perennial loser into a Super Bowl champion...and vice versa.

The Bills thought they were getting a franchise quarterback when they traded for Drew Bledsoe. The Cowboys thought they had the next Michael Irvin in Roy Williams, and let's not forget Mike Ditka gave up his entire draft with the Saints to trade up and select Ricky Williams. The last two are trades that in hindsight rank as some of the worst deals in NFL history.

What players will be available for trade once the NFL lockout ends? We break down the best players on the trade block at each position.

Quarterbacks

Everyone knows the big names here: Carson Palmer, Kevin Kolb, Kyle Orton and Donovan McNabb. Which veteran quarterback will be a savior, and which will be a curse?

Vince Young makes the list only because it is still possible a team will try to trade for his services and lock him up to a restructured contract once the deal is done.

Rank	Player	Team	Trade Value
1	Kevin Kolb	Eagles	Late first-round pick plus a player
2	Carson Palmer	Bengals	Second-round pick
3	Kyle Orton	Broncos	Third-round pick
4	Vince Young	Titans	Fourth-round pick
5	Donovan McNabb	Redskins	Fourth-round pick
6	Dennis Dixon	Steelers	Fourth-round pick
7	Jimmy Clausen	Panthers	Fourth-round pick
8	Brady Quinn	Broncos	Fifth-round pick
9	Brian Hoyer	Patriots	Sixth-round pick
10	Luke McCown	Jaguars	Seventh-round pick

Running Backs

Chris Johnson is arguably the best running back in the NFL, so why would the Titans consider trading him?

Johnson is on record as saying he wants a historic contract and could handcuff the Titans into dealing him. Johnson knows he can make more in a bigger market and may be pushing Tennessee into a corner.

Shonn Greene leads a list of underachievers who may be dealt to fill holes not addressed through the draft and free agency.

Rank	Player	Team	Trade Value
1	Chris Johnson	Titans	First- and second-round picks, plus future picks
2	Shonn Greene	Jets	Late second-round pick
3	BenJarvus Green-Ellis (RFA)	Patriots	Late second-round pick
4	Reggie Bush	Saints	Third-round pick
5	Ryan Grant	Packers	Fourth-round pick
6	Marion Barber III	Cowboys	Fourth-round pick
7	Tashard Choice	Cowboys	Fifth-round pick
8	Steve Slaton	Texans	Fifth-round pick
9	Donald Brown	Colts	Fifth-round pick
10	Chris Ivory	Saints	Seventh-round pick

Wide Receivers

Could Larry Fitzgerald be traded away this summer? You bet he could.

Fitzgerald is an excellent player, but he also wants to win a ring and has a contract that expires after the season. The Cardinals could see that they are better off getting compensation for him rather than letting him walk free.

The same can be said in San Diego, where Vincent Jackson is a franchise tag recipient.

Carolina, Cincinnati and Tennessee could also look to move receivers who are no longer happy with their situations.

Rank	Player	Team	Trade Value
1	Larry Fitzgerald	Cardinals	First- and second-round picks plus future pick
2	Vincent Jackson	Chargers	First-round pick
3	Steve Smith	Panthers	Second-round pick
4	Kenny Britt	Titans	Second-round pick
5	Roy Williams	Cowboys	Third-round pick
6	Chad Ochocinco	Bengals	Fifth-round pick
7	Eddie Royal	Broncos	Fifth-round pick
8	Anthony Gonzalez	Colts	Seventh-round pick
9	Brandon Tate	Patriots	Seventh-round pick
10	Andre Caldwell	Bengals	Seventh-round pick

Offensive Linemen

Offensive linemen are rarely traded, especially good ones. Logan Mankins may be an exception if the Patriots cannot talk him into a long-term deal on the back of a franchise tag designation.

Outside of Mankins, the NFL trade market for offensive linemen features veterans on their last legs and underachieving former first-round picks.

Rank	Player	Team	Trade Value
1	Logan Mankins	Patriots	First-round pick
2	Andre Smith	Bengals	Fourth-round pick
3	Brian Waters	Chiefs	Sixth-round pick
4	Chris Williams	Bears	Sixth-round pick
5	Marc Colombo	Cowboys	Seventh-round pick

Defensive Linemen

The group of players available on the defensive line features players unhappy with their teams and contract situations (Osi Umenyiora and Albert Haynesworth), former first-round picks who have failed to live up to their salaries (Tyson Jackson, Jerry Hughes, Derrick Harvey and Amobi Okoye) and veterans without a place on improving rosters.

Rank	Player	Team	Trade Value
1	Osi Umenyiora	Giants	Early second-round pick
2	Tyson Jackson	Chiefs	Late second-round pick
3	Albert Haynesworth	Redskins	Fourth-round pick
4	Jerry Hughes	Colts	Fourth-round pick
5	Derrick Harvey	Jaguars	Fourth-round pick
6	Ty Warren	Patriots	Fifth-round pick
7	Antwan Odom	Bengals	Fifth-round pick
8	Phillip Merling	Dolphins	Fifth-round pick
9	Amobi Okoye	Texans	Sixth-round pick
10	Everson Griffen	Vikings	Sixth-round pick

Linebackers

Linebackers, like offensive linemen, are rarely traded when they can still be productive.

One example of a player on the move this year with plenty left in the tank would be Arizona's Daryl Washington, who has been linked to Kevin Kolb in a potential trade with the Eagles.

Outside of Washington, this is a ragtag group of malcontents (Channing Crowder and Joey Porter) and young players battling for playing time and exposure.

There is also at least one example of a draft bust.

Rank	Player	Team	Trade Value
1	Larry English	Chargers	Second-round pick
2	Bradie James	Cowboys	Third-round pick
3	Daryl Washington	Cardinals	Third-round pick
4	Dan Connor	Panthers	Third-round pick
5	Nick Barnett	Packers	Fourth-round pick
6	Channing Crowder	Dolphins	Fifth-round pick
7	Sergio Kindle	Ravens	Fifth-round pick
8	Parys Haralson	49ers	Sixth-round pick
9	Joey Porter	Cardinals	Seventh-round pick
10	Aaron Maybin	Bills	Seventh-round pick

Defensive Backs

The Cardinals used the No. 5 overall pick in the 2011 NFL draft to select cornerback Patrick Peterson. Many feel this was done in an effort to trade Dominique Rodgers-Cromartie.

DRC is a premium cornerback and would command major compensation if he hit the open market, something Arizona needs as it tries to find a quarterback and rebuild its offensive line.

Others, like Aqib Talib and Mike Jenkins, are available due to off- and on-field issues with attitude and character.

Rank	Player	Team	Trade Value
1	Dominique Rodgers-Cromartie	Cardinals	First- and second-round and future draft picks
2	Aqib Talib	Buccaneers	Second-round pick
3	Mike Jenkins	Cowboys	Second-ound pick
4	Leodis McKelvin	Bills	Third-round pick
5	Kyle Wilson	Jets	Third-round pick
6	Brandon Meriweather	Patriots	Third-round pick
7	Terence Newman	Cowboys	Fourth-round pick
8	Corey Webster	Giants	Fifth-round pick
9	Cedric Griffin	Vikings	Fifth-round pick
10	Jonathan Wilhite	Patriots	Sixth-round pick