The NFL appears to be in a cycle where franchises are looking for offensive head coaches. They have also been uniformly white men this offseason.

The NFL had eight head coach openings this offseason and all six of the hires have been by white men lauded for their ability to coach on offense.

Andy Reid (Chiefs), Doug Marrone (Bills), Rob Chudzinski (Browns), Mike McCoy (Chargers), Marc Trestman (Bears) and Chip Kelly (Eagles) have all been hired. 

The favorites for the final two positions are Bruce Arians for the Cardinals and Greg Roman for the Jaguars.

All of the general manager hires have also been white men.

The NFL requires the interview of at least one minority candidate for every head coach and GM position.

Mike Pettine has been named defensive coordinator of the Buffalo Bills.

Pettine was previously with the New York Jets.

Nathaniel Hackett, who was Doug Marrone's offensive coordinator at Syracuse, will also be his offensive coordinator with the Bills, the Buffalo News reported.

Doug Marrone has agreed to leave Syracuse and become the new head coach of the Bills, league sources told ESPN on Sunday morning.

Marrone replaces Chan Gailey, who was fired after going 16-32 over three seasons. 

The Buffalo Bills have conducted interviews with Chip Kelly, Lovie Smith and Doug Marrone.

The Bills previously interviewed Ken Whisenhunt and Ray Horton.

Mike McCoy, offensive coordinator of the Denver Broncos, will interview for head coaching jobs with the Buffalo Bills, Arizona Cardinals and Philadelphia Eagles.

McCoy is allowed to interview for head coaching jobs this weekend only because the Broncos have a bye in the playoffs. 

McCoy interviewed for the Miami Dolphins' vacancy last season.

Pro Football Focus has announced their All-Pro Team for the 2012 NFL season.

Selections from Playoff Teams

Five selections: 49ers

Four selections: Vikings, Patriots

Three selections: Broncos, Packers, Texans, Ravens, Bengals

Two selections: Seahawks

One selection: Colts

No selection: Falcons, Redskins

(Second team selection in parenthesis)

Offense

QB: Peyton Manning, DEN (Aaron Rodgers, GB)

RB: Adrian Peterson, MIN (C.J. Spiller, BUF)

FB: Vonta Leach, BAL (Marcel Reece, OAK)

TE: Rob Gronkowski, NE (Jason Witten, DAL)

WR: Calvin Johnson, DET (Brandon Marshall, CHI)

WR: Andre Johnson, HOU (Vincent Jackson, TB)

WR: Reggie Wayne, IND (A.J. Green, CIN)

LT: Duane Brown, HOU (Joe Staley, SF)

LG: Evan Mathis, PHI (Mike Iupati, SF)

C: John Sullivan, MIN (Max Unger, SEA)

RG: Marshal Yanda, BAL (Alex Boone, SF)

RT: Andre Smith, CIN (Sebastian Vollmer, NE)

Defense

Edge Defender: Cameron Wake, MIA (Clay Matthews, GB)

Edge Defender: Von Miller, DEN (Aldon Smith, SF)

Defensive Interior: J.J. Watt, HOU (Muhammad Wilkerson, NYJ)

Defensive Interior: Geno Atkins, CIN (Gerald McCoy, TB)

OLB: Jerod Mayo, NE (Kevin Burnett, MIA)

MLB: Patrick Willis, SF (Bobby Wagner, SEA)

OLB: Derrick Johnson, KC (Daryl Washington, AZ)

CB: Richard Sherman, SEA (Antonio Cromartie, NYJ)

CB: Charles Tillman, CHI (Champ Bailey, DEN)

Slot CB: Casey Hayward, GB (Antoine Winfield, MIN)

FS: Jarius Byrd, BUF (Devin McCourty, NE)

SS: Eric Weddle, SD (Reshad Jones, MIA)

Special Teams

K: Blair Walsh, MIN (Phil Dawson, CLE)

P: Thomas Morstead, NO (Dustin Colquitt, KC)

Returner: Jacoby Jones, BAL (Leodis McKelvin, BUF)

Special Teamer: Ashlee Palmer, DET (Johnson Bademosi, CLE)

Ken Whisenhunt interviewed with Cleveland Browns' owner Jimmy Haslam and CEO Joe Banner on Wednesday in Arizona.

Oregon's Chip Kelly and Doug Marrone of Syracuse also are candidates for the Cleveland job. 

The Bills are also interested in Whisenhunt.

Lovie Smith will interview with the Buffalo Bills over the weekend.

Smith is reportedly eager to interview with the Bills for their head coaching vacancy.

Smith went 81-63 in nine seasons with the Bears.

Chip Kelly will interview with the Cleveland Browns, Philadelphia Eagles and Buffalo Bills about their respective vacancies, according to a person informed of Kelly's plans to meet with the teams.

Kelly will coach Oregon in the Fiesta Bowl on Thursday.

"I don't expect anything," Kelly said on Wednesday. "I'm never surprised by anything."

Buffalo Bills owner Ralph Wilson has given full authority to Russ Brandon.

Wilson is 94 years old.

Brandon said Buddy Nix will remain the club's general manager. A team source told ESPN, however, that the Bills will transition to Doug Whaley at GM at some point.

The Bills fired Chan Gailey on Monday after the team's second straight 6-10 season.

Brandon completed his 16th season with the Bills, and has been serving as the team's chief operating officer since 2008. He was initially hired to work as the Bills director of business development and marketing.