Rod Coleman - The Atlanta Falcons decided to go with younger players in his place. He's had his share of injuries, but Coleman should have one more productive year left in him.
Marcus Tubbs - The former first-round pick of the Seattle Seahawks needs to prove he's over his injury problems.
Anthony McFarland - He's coming back from patella tendon surgery but the feeling is he'll be able to contribute to a team in a reserve role.
Ed Johnson - The former starter for the Indianapolis Colts was released by the team recently due to an off the field issue.
La Juan Ramsey
Matthias Askew - A former fourth-round pick of the Bengals.
Ethan Kelley - Despite coming back from microfracture knee surgery, he's had at least three free agent visits so far this year.
Antonio Garay - He fits in as a fourth defensive tackle.
Ross Koloziej - He fits in as a fourth or fifth defensive tackle.
Russell Davis - He fits in as a fourth or fifth defensive tackle.
Kabeer Gbaja-Biamila - When a team like the Green Bay Packers that has next to no depth at defensive end decides to release him, you have to wonder how much Gbaja-Biamila has left in the tank.
N.D. Kalu - The veteran end was released by the Houston Texans recently.
Bryce Fisher - At this point in his career, he fits in as a fourth end.
Erasmus James - The former first-round pick of the Minnesota Vikings was released by the the Washington Redskins earlier this week.
Darrion Scott - Legal issues could prevent him from finding a place to play this season since he's suspended for three games.
Rodney Bailey (DE in 3-4/DT in 4-3)
Melvin Oliver - He was recently released by the San Francisco 49ers but he's a decent fit for a team that uses a 3-4.
Derek Smith - The veteran linebacker was recently released by the San Diego Chargers.
Brandon Moore (WLB) - He's a solid backup that can play at a variety of positions.
Derrick Pope (SLB/WLB) - It was a bit surprising that this versatile linebacker was released by the Minnesota Vikings.
Odell Thurman - The Cincinnati Bengals decided they would move on without him and he's been suspended by the NFL for a year.
Lemar Marshall (WLB) - He would be a solid backup linebacker who can play inside or on the weak-side.
Brian Simmons (WLB) - He refused a pay cut and was released recently by the New Orleans Saints.
Robert McCune - The Baltimore Ravens recently released him.
Greg Wesley - He was recently released by the Oakland Raiders.
Glenn Earl - He was a starter for the Houston Texans for a few seasons.
Deke Cooper - He was recently released by the Atlanta Falcons.
Gary Baxter - He's still trying to come back from a serious knee injury.
Calvin Lowry - He was released by the Denver Broncos earlier this week.
Omar Stoutmire - The journeyman safety is still a decent backup.
Mel Mitchell - He's a solid special teams player.
Brian Kelly - The Detroit Lions released him earlier this week, but Kelly could fit in as a nickel back.
Andre Dyson - If healthy, Dyson could land a job as a nickel back.
Kenny Wright - Legal woes cost him a job with the Cleveland Browns.
Kelly Herndon - He could come in and handle a nickel role for a team.
Fred Thomas - Older cornerback who could play in a dime role.
Roc Alexander - Versatile defender who fits best in a dime defense.
Chidi Iwuoma - He's primarily a special teams player but a good one in that role.
Best Available Free Agents-Defense-Week 15