The Buffalo Bills may not be done fine-tuning the back end of their roster. As it sits now, GM Buddy Nix and head coach Chan Gailey have brought in brand new players to occupy more than a quarter of the first team they'll field in Buffalo.
15 players currently on Buffalo's active roster were not with the organization in any capacity during the 2009 season. Here's how those players were acquired.
Unrestricted Free Agency (4)
Cornell Green was signed from Oakland to play right tackle after Brad Butler's retirement. Green has not been overly impressive, but he'll start at right tackle nonetheless. He signed a three-year, $9 million deal.
Dwan Edwards joined the Bills after six years in Baltimore. He's been a starting defensive end ever since, seeing time on both the left and right sides. He signed a four-year, $18 million contract.
Andra Davis was released by Denver after just one season, and quickly snapped up by the Bills. He'll be a run-down inside linebacker for his new team. Davis signed a two-year, $4.4 million deal.
Reggie Torbor wasn't signed until after the 2010 NFL Draft, but immediately brings 3-4 experience to the table. He'll start at the Jack position (weak outside), but might be a better fit on the inside.
2010 NFL Draft Picks (5)
C.J. Spiller was the team's first-round pick (No. 9 overall), and is, without question, the most exciting and talented player on the roster. He may not "start" at running back, but he'll have a very significant role in Gailey's offense.
Ed Wang, a fifth-round pick, has been injured for most of the preseason. The athletic left tackle will ideally spend most of 2010 inactive as Bills coaches look to develop him for the long term.
Alex Carrington may not have a huge defensive role this year, but he's made quick strides as a five-technique end. Coaches will rotate the third-round pick into the lineup more and more as the season progresses.
Torell Troup is arguably the only natural zero-technique player on the roster. The road to playing time is partially blocked by the highly durable Kyle Williams, but Troup is the designated run defender along the D-Line.
Arthur Moats was roughed up a bit in the preseason as he transitions from college end to pro inside linebacker. While he works on coverage skills and re-honing his instincts, he'll be a key special teams member.
Undrafted Free Agents (4)
David Nelson was viewed as a project-type receiver out of Florida, but has impressed with his hands, athleticism and freakish healing ability. He is the No. 4 receiver, and will see snippets of playing time as a rookie.
Donald Jones had some spectacular practices, and flashed ability as a kick returner. He won't see much time offensively, but will contribute on special teams coverage units.
Cordaro Howard impressed with his excellent athleticism enough so that he was a second-teamer from the start of his first training camp. He'll back up at both guard spots and block on kick returns.
Antonio Coleman was a steady force in the SEC, and translated those skills well in Buffalo. He's a specialist for now, but has some upside as a pass rusher from his new 3-4 OLB position.
Post Cut Acquisitions (2)
David Martin, a veteran tight end with 152 career catches and 14 career touchdowns, was signed as a free agent. He'll bring knowledge of Miami's offense for Week 1, as well as a dependable presence as a backup tight end.
Kraig Urbik was drafted in the third round by Pittsburgh just a year ago, and upon being waived, got interest from Buffalo, Cincinnati, Denver, Miami and the Jets. He'll be a backup guard initially, but has starter potential.