Key losses: RB Rashard Mendenhall (Cardinals), WR Mike Wallace (Dolphins), OT Max Starks (Chargers), G Willie Colon (Jets), NT Casey Hampton (free agent), LB James Harrison (Bengals), CB Keenan Lewis (Saints), S Will Allen (Cowboys), S Ryan Mundy (Giants).
Outlook: The Steelers were battling preseason injuries in their fight to move on from last season’s 8-8 mark — their first nonwinning campaign under Tomlin. Rookie Bell, who was running as the starter, had a midfoot sprain, and Spaeth had surgery for a lisfranc injury. They were expected to help replace the offense lost in Mendenhall and Wallace. Also, their schedule is tough.
Coach: Gary Kubiak (59-53, eighth season).
Key additions: S Ed Reed (Ravens), FB Greg Jones (Jaguars), P Shane Lechler (Raiders), S D.J. Swearinger (draft), LB Sam Montgomery (draft), WR DeAndre Hopkins (draft), RT Brennan Williams (draft), RB Dennis Johnson (undrafted free agent), TE Ryan Griffin (draft).
Key losses: TE/FB James Casey (Eagles), S Glover Quin (Lions), DE/OLB Connor Barwin (Eagles), RB Justin Forsett (Jaguars), CB Alan Ball (Jaguars), P Donnie Jones (Eagles), WR Kevin Walter (Titans).
Outlook: With back-to-back playoff appearances and a talented roster whose stars are still in their prime, expectations are high. Houston went 12-4 last season, and quarterback Matt Schaub played in all 16 games after missing six in 2011. He passed for 4,008 yards, and still has Andre Johnson, who is coming off of a 112-catch campaign with a career-high 1,598 yards. J.J. Watt has shown he can dominate on defense, and now he wants to join the offense as a part-time tight end.
Coach: Chuck Pagano (2-2, second season).
Key additions: RB Ahmad Bradshaw (Giants), WR Darrius Heyward-Bey (Raiders), S LaRon Landry (Jets), DE Bjoern Werner (draft), G Hugh Thornton (draft), C Khaled Holmes (draft), LB Erik Walden (Packers), T Gosder Cherilus (Lions), G Donald Thomas (Patriots), CB Greg Toler (Cardinals), DT Aubrayo Franklin (Chargers), QB Matt Hasselbeck (Titans), DT Ricky Jean Francois (49ers).
Key losses: WR Donnie Avery (Chiefs), WR Austin Collie (49ers), LB Moise Fokou (Titans), DE Dwight Freeney (Chargers), DT Antonio Johnson (Titans), T Winston Justice (free agent), RB Mewelde Moore (free agent), CB Jerraud Powers (Cardinals), S Tom Zbikowski (Bears), LB Jerry Hughes (Bills).
Outlook: It’s all about Andrew Luck for the Colts, who bolstered the offensive line, added Heyward-Bey as another deep target for the impressive second-year quarterback and brought in Bradshaw to lift the running game. Werner was drafted to rush the passer.
Coach: Gus Bradley (first season).
Key additions: LB Geno Hayes (Bears), CB Marcus Trufant (Seahawks), T Luke Joeckel (draft), S Jonathan Cyprien (draft), CB Dwayne Gratz (draft), WR Ace Sanders (draft), QB Denard Robinson (draft), DT Roy Miller (Bucs), RB Justin Forsett (Texans), CB Alan Ball (Texans), DT Sen’Derrick Marks (Titans), QB Mike Kafka (Eagles).
Key losses: WR Laurent Robinson (free agent), T Eben Britton (Bears), CB Derek Cox (Chargers), RB Rashad Jennings (Raiders), FB Greg Jones (Texans), DT Terrance Knighton (Broncos), CB Rashean Mathis (Lions), LB Kyle Bosworth (Giants), LB Daryl Smith (Ravens), S Dawan Landry (Jets), CB Aaron Ross (Giants), DT C.J. Mosley (Lions).