Atlanta Falcons

New faces: RB Steven Jackson, DE Osi Umenyiora, CB Desmond Trufant, CB Robert Alford, DE Malliciah Goodman.

Saying goodbye: DE John Abraham, RB Michael Turner, OT Tyson Clabo, C Todd McClure, CB Dunta Robinson.

Youth movement: The Falcons’ secondary is in a state of flux. The team parted ways with veteran cornerbacks Robinson and Brent Grimes, and will replace them with their top two draft picks in April, Trufant and Alford.

Best young player: WR Julio Jones, right.

Pressure’s on: DE Osi Umenyiora. The Falcons let Abraham, who led them in sacks last season (10), go in the offseason and are counting on Umenyiora to replace his production.

New Orleans Saints

New faces: CB Keenan Lewis, LB Victor Butler, TE Benjamin Watson, S Kenny Vaccaro, OT Terron Armstead.

Saying goodbye: LT Jermon Bushrod, WR Devery Henderson, DT Sedrick Ellis, RB Chris Ivory, QB Chase Daniel.

Youth movement: New left tackle Charles Brown has made just eight starts in three NFL seasons, and now Brown is in charge of protecting Brees’ blind side. He’s looked good in camp, and the Saints like his potential.

Best young player: TE Jimmy Graham. With 20 touchdown catches over the past two seasons, Graham has developed into quarterback Drew Brees’ favorite target. Given Rob Gronkowski’s uncertain health, Graham is the best in the league at his position.

Pressure’s on: Defensive coordinator Rob Ryan. The Saints were historically bad on defense last season, giving up 7,042 yards, the most ever in a single season. Will changing schemes, from a 4-3 to a 3-4, make them better? Ryan has his work cut out for him.

Carolina Panthers

New faces: WR Domenik Hixon, KR/PR Ted Ginn Jr., CB Drayton Florence, LB Chase Blackburn, CB D.J. Moore.

Saying goodbye: CB Chris Gamble, LB James Anderson, WR Louis Murphy, S Sherrod Martin, DT Andre Neblett.

Youth movement: The Panthers upgraded the defensive tackle position, adding Star Lotulelei and Kawann Short with their first two picks in April’s draft.

Best young player: LB Luke Kuechly. Led the NFL in tackles as a rookie and has the athletic ability to be equally s good in pass coverage as he is against the run.

Pressure’s on: WR Brandon LaFell. The Panthers have needed to develop a second option at receiver behind Steve Smith since Muhsin Muhammad retired. LaFell is coming off his best season, with 44 catches for 677 yards, and is being counted on to continue his development.

Tampa Bay Buccaneers

New faces: CB Darrelle Revis, S Dashon Goldson, OT Gabe Carimi, DT Akeem Spence, K Rian Lindell.

Saying goodbye: S Ronde Barber, K Connor Barth, DE Michael Bennett, TE Dallas Clark, RB LeGarrette Blount.

Youth movement: The Bucs let one of the best players in franchise history in Barber walk, making a huge free-agent investment in Goldson, a 29-year-old who was an All-Pro for the 49ers in 2012.

Best young player: RB Doug Martin. Rushed for 1,454 yards as a rookie, and so won over the team that it gave out just 97 carries to other running backs all year.

Pressure’s on: DE Da’Quan Bowers. Coach Greg Schiano has talked about Bowers’ potential. Tampa Bay had only 27 sacks last season, nine from the departed Bennett. Bowers needs to fill that void. – J.S.