4-3 Right End: Osi Umenyiora
3-4 Weak Outside Linebacker: Jonathan Massaquoi
4-3 Weakside Linebacker/3-4 Weak-Inside Linebacker: Sean Weatherspoon
4-3 Middle Linebacker/3-4 Strong-Inside Linebacker: Paul Worrilow
Strong-side Linebacker: Kroy Biermann
Backups: Prince Shembo, Tyler Starr, Joplo Bartu, Marquis Spruill and Yawin Smallwood
Osi Umenyiora and Kroy Biermann look to be the base defensive starters on the edge. Biermann coming back from an Achilles injury is going to be tough to gauge, though. Hopefully, he'll be back and able to drop like a linebacker as he used to.
Jonathan Massaquoi looks to be the best fit for the Falcons' pass-rush specialist in the Mike Nolan defense, as he profiles similarly to Cameron Wake and Elvis Dumervil. Joplo Bartu and Paul Worrilow have both earned roster spots after their performances in 2013.
Worrilow looks to be the guy who should wear the green dot, as he should never leave the field due to his all-around abilities. Prince Shembo and Tyler Starr both have a lot of potential as pass-rushers. If Starr develops, he's going to be a monster in the Falcons defense.
Marquis Spruill and Yawin Smallwood are the ideal backup inside linebackers, as they can both play special teams effectively. Spruill can also line up at weak-side linebacker in the 4-3 looks Atlanta will show sometimes. Atlanta really has the personnel to run Nolan's defense the way it should be.
Didn't Make the Cut: Stansly Maponga, Walker May, Jacques Smith, Akeem Dent and Brenden Daley
There are some shocks here in Stansly Maponga and Akeem Dent. However, both have been adequately replaced with Shembo and Spruill. Walker May, Jacques Smith and Brenden Daley are all camp bodies who have some solid depth potential.