Breaking down which vet players could be traded during NFL draft

Marion Barber, due $8 million in 2010, is part of a crowded backfield in Dallas. Bob Rosato/SI

If the 2010 NFL offseason were given a moniker it would be called the "Year of the Trade." Never before have so many trades taken place in general, and involving big-name players in particular. From Donovan McNabb to Santonio Holmes to Brandon Marshall, the ability to trade players without any cap consequences in the uncapped year has kept the NFL hot stove cooking over the past three months. Already this week, former first round picks Byron Leftwich, Adam Carriker and Ernie Sims have been dealt.

Many NFL people feel the trading trend will continue through the draft. Here's a breakdown of some of the veteran players who may be moved during the three-day period, though it is a given that there will be a couple not on this list that end up changing addresses.

JARED GAITHER, RAVENS, OFFENSIVE TACKLE

Why he might be traded: The Ravens have been less than impressed with Gaither's work ethic and physicality and if they are only going to pay one elite tackle, it will be last year's first-round pick, Michael Oher. Still, Gaither is a very talented pass protector who would be an upgrade for several teams.
Where he might be traded: Oakland, Dallas, Buffalo, San Francisco.
Likelihood of trade taking place and possible draft pick value: 35%, 2nd Round.

MARION BARBER, COWBOYS, RUNNING BACK

Why he might be traded: The Cowboys have two other good running backs in Felix Jones and Tashard Choice. Barber's 2010 compensation of close to $8 million could be prohibitive, however, for some teams.
Where he might be traded: Houston, Cleveland, Seattle.
Likelihood of trade taking place and possible value: 5%, 5th Round.

BOBBY CARPENTER, COWBOYS, LINEBACKER

Why he might be traded: He's been a bust for the Cowboys but was a first-round pick that a lot of teams really liked coming out of Ohio State.
Where he might be traded: Cleveland, San Diego, Kansas City.
Likelihood of trade taking place and possible value: 50%, 7th Round.

MARCUS SPEARS, COWBOYS, DEFENSIVE END

Why he might be traded: He's a solid player, especially as a run defender, that some 3-4 teams should take a hard look at. The Cowboys seem unlikely to sign him to a long-term deal and are content with his back-ups, Stephen Bowen and Jason Hatcher.
Where he might be traded: Miami, Baltimore, Washington.
Likelihood of trade taking place and possible value: 20%, 3rd-4th Round.

BEN ROETHLISBERGER, STEELERS, QUARTERBACK

Why he might be traded: Ben has lost the city of Pittsburgh and it is unclear whether he would ever be able to earn back their respect. That said, he is still arguably a top five quarterback who could immediately help a number of teams.
Where he might be traded: Oakland, Buffalo.
Likelihood of trade taking place and possible value: 15%, 1st Round.

MARSHAWN LYNCH, BILLS, RUNNING BACK

Why he might be traded: The Bills think Fred Jackson is a better player and Lynch's off-field issues have been a real thorn in Buffalo's side.
Where he might be traded: Detroit, San Diego, Seattle.
Likelihood of trade taking place and possible value: 25%, 4th Round.

RONNIE BROWN, DOLPHINS, RUNNING BACK

Why he might be traded: He has been banged up a bunch during his career in Miami and the Dolphins appear unlikely to give him a long-term deal.
Where he might be traded: Detroit, Seattle, Minnesota.
Likelihood of trade taking place and possible value: 25%, 3rd-4th Round.

OSI UMENYIORA, GIANTS, DEFENSIVE END

Why he might be traded: He may not be a starter in New York anymore and his mouth has gotten him into hot water more than once. That said, there are a bunch of teams that could use his pass-rushing ability.
Where he might be traded: St. Louis, Carolina.
Likelihood of trade taking place and possible value: 33%, Late 1st-2nd Round.

JUSTIN SMILEY, DOLPHINS, GUARD

Why he might be traded: The Dolphins have soured on him, primarily because of durability issues.
Where he might be traded: Chicago, Kansas City, Cleveland.
Likelihood of trade taking place and possible value: 75%, 6th Round.