While not as prevalent as in Major League Baseball, the NFL's trade deadline is a time when franchises can try to unload unwanted pieces and/or pick up key contributors for a playoff run.
Not all teams offer up a player prior to the trade deadline, which occurs on the Tuesday after the sixth week of the regular season (October 18 this year).
However, here is the best guess as to who each of the 32 NFL clubs could put on the trading block in the next month.
Now more motor mouth than muscle for the defense he plays for, Joey Porter has averaged less than 50 tackles for the past three seasons.
At age 34, he's clearly not the same intimidating linebacker that he was when he was wearing the black and gold of Pittsburgh. Arizona's best bet is to see if another team can take him off their hands.
The offseason addition of Ray Edwards from Minnesota has made Biermann less valuable to the Falcons defensive line.
This 25-year-old, in his third NFL season, appears to have some upside, which means that teams will gladly give up draft picks if Atlanta is willing to part with him.
The Ravens have quickly accumulated plenty of talent in the secondary in a short amount of time.
Chris Carr is set to a be a starter at cornerback. The team drafted Jimmy Smith to play corner as well. Ladarius Webb is fully healthy. And it's no secret what veteran safety Ed Reed can do.
That may mean Foxworth is left without a chair in this crowded part of the club. He is still trying to fully recover from knee surgery and has not progressed as well as the Ravens would like.
It's hard to get much attention up in Buffalo. Jackson ran for 927 yards in 2010 and scored five touchdowns on the ground on 222 carries, which went completely unnoticed as the Bills went through another rough season.
One issue that the team should be fully aware of is that the 30-year-old Jackson is reaching the age when running backs tend to drop off in production.
Combine that with the fact that he feels unappreciated in Buffalo and the possible naming of second-year player C.J. Spiller as the starter at RB, and it's no surprise that he would want a trade.
That wish could be fulfilled.
Thanks to injuries and poor play at the quarterback position, Smith's streak of five-straight seasons with 1,000 or more receiving yards came to a halt.
The veteran, entering his 11th pro year, should be able to bounce back—whether it's with Carolina or a new team is still up in the air.
Granted, the Panthers may want to keep Smith around so rookie QB Cam Newton has a still-talented target to throw to. However, his bad attitude may overrule any assistance in the growth of the offense.
Smith has asked for a trade on several occasions. This year, the Panthers may oblige.
Last week, news surfaced that the long-time Bears linebacker wants to negotiate a new contract before the end of this season or he will demand a trade.
The six-time Pro Bowler, who has three years left on the six-year, $36 million deal he signed in 2007, has been a central figure to Chicago's defense. That doesn't mean the Bears wouldn't put him on the trading block at midseason rather than risk giving him an even more lucrative deal in 2012.
Palmer has vowed to never play another down in a Cincinnati Bengals uniform. The Bengals brass has vowed that they won't trade the former Heisman Trophy winner.
But this standoff could end within the next month. Consider that there will be at least one team with QB issues, whether it be injuries or poor performances. Those teams will be contacting Cincinnati and offering a potentially enticing scenario.
Before his value fades away, the Bengals should swallow their pride and attempt to ship Palmer to greener pastures.
When the Browns picked up Wallace in a trade with the Seattle Seahawks in 2010, they figured he would be competing for the starting QB job with Colt McCoy.
Now that McCoy has firmly established himself as the first-stringer for a club that is certainly in a youth movement, the chances of Cleveland trying to deal Wallace for draft picks or more young talent has grown in likelihood.
Newman has tumbled down the Dallas depth chart ever since his second Pro Bowl season in 2009.
Unfortunately for him, this is due to age (33) and the drop in ability that goes along with that.
The Cowboys would be wise to offer up his services to those that need cornerback help before Newman's value sinks any lower.
About a month ago, the majority of the trade rumors in Denver were swirling around Kyle Orton.
Now, the more likely Broncos signal-caller to be dealt is Tebow. This after Orton was named the starter in late August.
Although news has popped up that the former University of Florida star will either be traded or released from Denver, there are those NFL pundits that feel this is nothing more than an over-hyped rumor.
There are two reasons for this. First, it's unlikely that a team will take on the Tebow experiment. Secondly, the Broncos can't possibly give up on him after less than two seasons.
Still, Denver could put Tebow out as bait and see if anyone bites.
At one point in the offseason, defensive tackle Corey Williams appeared to be a guy that the Lions could place on the trading block. Then came the injury to rookie DT Nick Fairley, making Williams a need for Detroit.
As for Derrick Williams, it's hard to imagine what the Lions would get for a guy that has only had nine receptions and 82 yards in his career.
Then again, it's tough figuring out a talented piece they'd be willing to give away from this emerging club.
It's safe to say that the Packers are content with their current quarterback situation. Who wouldn't when you have Super Bowl MVP Aaron Rodgers—a player that is just entering the prime of his career?
Green Bay's title run did encounter a slight bump in the road at midseason when Rodgers went out with a concussion. In his place was the backup Flynn, who completed 23-of-37 passes for 254 yards and three TDs in a narrow Sunday night loss to the New England Patriots—a performance that probably didn't go unnoticed by other teams.
Although it's always nice to have a viable backup in place—especially at quarterback—the offers coming the Packers' way may be too tempting to pass up.
Before the unexpected emergence of Arian Foster, Slaton was Houston's main man at running back. In 2008, the former West Virginia University Mountaineer totaled more than 1,600 yards and scored 10 touchdowns.
His production went down in 2009 and thanks to fumbling problems combined with Foster's breakout campaign last year, he was pushed back to the No. 3 spot on the depth chart.
Despite what has recently happened, Slaton still has trade value and can be an important backup on a team in need of one.
He appeared to be emerging as one of Peyton Manning's new favorite targets. From 2008 to 2009, Gonzalez caught 94 passes for more than 1,200 yards and scored seven touchdowns.
But his 2010 season has probably given the franchise reason to question his staying power. He suffered a high ankle sprain in Week 1, then injured his knee in Week 8.
Gonzalez's pending free agency in 2012, coupled with mounting physical ailments, could be a ticket out of Indy before this season reaches the halfway point.
It appears that it's only a matter of time before rookie Blaine Gabbert supplants Garrard as the starting quarterback in Jacksonville.
Gabbert's 30-of-50 passing effort in the preseason didn't go unnoticed, but Garrard is the man to take the snaps behind center in Week 1. However, if the Jags struggle early, the call could go to Blaine.
The chances of Garrard being shipped out and leaving Gabbert without a "mentor" early in his career are less than 50-50, but the veteran should still pique the interests of some GMs in the NFL.
After a lackluster performance in 2009, Johnson rebounded in 2010 and helped a stingy Kansas City defense with his 121 tackles and four forced fumbles.
This side of the football is an area in which the Chiefs are loaded with talent, leaving the team with the flexibility to unload one of their players in exchange for someone that could help the offense.
There are still those that feel Johnson hasn't fully lived up to his expectations and consider last year as a fluke. Dealing Johnson would be a risky proposition, but one that could result in many key additions coming to K.C.
Merling has faded to backup status on the Dolphins' defensive lines; he has been more disappointment than dominant in his three seasons in South Beach.
He has solid ability to stop the run, but he may be better suited for a different defense than the one he's currently a part of.
With free-agent status coming in 2012, it may be best to see if they can unload him sooner rather than later.
Enough is enough. Williams' talents were able to overshadow his issues, but that is not the case any more.
In his rookie year of 2003, Williams led the Vikings with 10.5 sacks. He, along with his namesake Pat, formed a formidable defensive line for Minnesota.
But his testing for a banned stimulant three years ago has left a cloud over him since then and following appeals, ultimately leading to a two-game suspension at the start of this season. Even if and when he does play, it's unknown if his left foot will let him be effective.
It's possible that some team, desperate for defensive line help, will want to take a chance on a DT that has certainly lost a step.
The Patriots have a pretty good thing going for them at the quarterback position. And that's not just counting the fact that they have three-time Super Bowl champion Tom Brady.
Ryan Mallet, a third-round selection in this year's draft, has been impressive in his preseason action, including a 12-of-19 passing effort against the Jacksonville Jaguars on Aug. 11. New England will obviously hold on to the rookie, currently No. 3 on the depth chart, and see how he pans out.
The No. 2 man is Hoyer, who was 15-of-21 in that same contest with the Jags.
The Saints don't have a paucity when it comes to talent on their offense, with the wide receiver spot being one of them. New Orleans has pass catchers such as Marques Colston, Robert Meachem, Lance Moore and Devery Henderson.
That said, the Saints may be willing to move their talented wideout in order to upgrade at other needs on the roster.
Other teams would be willing to take a shot on Henderson and might feel that he could be just as effective with their offense as he is with Drew Brees as his quarterback.
At one point, Umenyiora had the most noteworthy holdout of the preseason. Apparently, he isn't demanding a trade at this moment, yet the odds of the multi-Pro Bowl defensive end being dealt aren't zero.
Last season, Osi had 11.5 sacks and a whopping 10 forced fumbles, which means that any trade would likely be the most significant of the season.
It also means that there are a laundry list of teams that will clamor for Osi to come into their defensive systems.
It's highly doubtful that the Jets will make any alterations to their defense. On offense, New York is set with its two running backs, Shonn Greene and LaDanian Tomlinson. The third-string ball carrier as of today is the former USC standout Joe McKnight.
The fourth-round pick in 2010 ran for 189 yards on 39 carries in his rookie campaign. As far as this preseason goes, he has complied 101 yards on 25 attempts.
Although it's not a spectacular chip to deal, McKnight is the best bet as to who the Jets will offer up come this year's trade deadline.
It's impossible to predict what the Oakland Raiders will do, but logic suggests they should be willing to part ways with a player at a position that has a surplus of talent.
Darren McFadden carries the majority of the load when it comes to running the football. Bush had 158 attempts in 2010, totaling 655 yards and eight touchdowns.
That sampling should be enticing to at least one franchise. While there's no question that you can't have too much talent in the backfield, the Raiders are a team that has a number of holes that need to be filled. And one way to fill those holes and gain some assets is to offer up Bush.
When the Eagles made the biggest splash of the offseason with the acquisition of Dominique Rodgers-Cromartie and the signing of free agent Nnamdi Asomugha, the logical thought was that Asante Samuel's days in Philly were numbered.
The rumors of Samuel departing from the crowded Eagle secondary have cooled off for the time being, but could heat up once the season gets under way—especially as teams see that they have a need for someone of his abilities.
Conversely, Philadelphia will observe its weaknesses and could use Samuel as a trading chip to then pick up a player that can fill its glaring needs.
It isn't wrong to have too crowded of a backfield—and the Steelers have that luxury. Rashard Mendenhall is a solid No. 1.
Behind him is Mewelde Moore and Isaac Redman. The latter had 247 yards on 52 attempts compared to Moore's 99 yards. That means it's no surprise that Redman should see an increase in carries in 2011, while Moore will likely be a third-down back.
That, however, doesn't necessarily mean they will seek any trade possibilities for Redman and see if they might have better options elsewhere.
Jackson has proven to be an offensive asset with his performances on the field—and a pain in the neck with his actions off the field.
He has a one-year contract worth $11.42 million and he'd like to see that income increase prior to 2012.
Even though Jackson has the potential to be a top-five wideout in the NFL, the Chargers may be more willing to get rid of a malcontent at midseason rather than letting him go as a free agent next offseason.
With the signing of running back Frank Gore to a long-term contract, the speculation of trading the talented ball carrier has been diffused.
That doesn't leave many options as to who the Niners may offer up come Oct. 18.
Although San Francisco has an offensive line that struggled in 2010, they are very deep in this area. Specifically, the 49ers have two potential starters at center. Snyder and the newly-acquired Jonathan Goodwin are vying for that spot.
Unless there is a platooning system in place, the Niners have a chance to deal Snyder to a club in desperate need of blocking help.
The seven-year linebacker, who complied just 19 tackles in his first season with Seattle, edged out several to make the 53-man roster for the Seahawks.
Pending on the performance of others at his position, McCoy may end up being expendable and able to be traded to obtain some offensive help.
At 6'5" and with great athletic ability, Danario Alexander is capable of becoming a No. 1 receiver down the line.
But, as is the sad case with many talented players, injuries can get in the way. The Rams may not want to wait for Alexander to be consistently healthy and there is absolute certainty that a team will take a risk on his potential to put up solid numbers.
Talib is a cornerback that has plenty of potential. Unfortunately, he also has the potential to be a continuing problem for the Buccaneers with his immature actions.
The most recent incident—an aggravated assault with a deadly weapon—may very well be the last straw for Tampa Bay.
The only question is if there will be a team willing to take on this 25-year-old problem child. Well, there's always the Raiders.
Any thought of RB Chris Johnson being traded has, fortunately for all Tennessee Titans fans, gone away with his contract extension.
The only problem in that lies with this list, as it's now very difficult to spot anyone the Titans would put on the trading block. The best candidate is defensive end Derrick Morgan, who played in just four games last season and has been constantly hampered with knee issues.
If he's healthy enough to play in the early part of the 2011 season, he can be showcased as a commodity that can be used for the Titans to continue their rebuilding process.
Buchanon's two interceptions in 2010 don't mask the difficulty he had in defending both the pass and the run.
Too often he has been the target of opposing quarterbacks, and too often they have the bulls-eye with their completions.
His off-the-field performance hasn't been all that good lately, either. On Friday, the NFL handed him a four-game suspension for a violation of the league's policy on performance-enhancing substances.
Buchanon hasn't performed well since his early pro years in Oakland. That doesn't mean there are clubs that still believe he can be as effective as he was then.
The Redskins did a good job ridding themselves of the Albert Haynesworth headache. Here's another one they should hope to see in a different uniform come Oct. 18.