2006 NFL season

On March 20, 2006, Paul Tagliabue announced his plans to retire as NFL commissioner. During an NFL meeting in Northbrook, Illinois, on August 8, league team owners selected Roger Goodell, the NFL's then-current chief operating officer, as the new commissioner. Tagliabue continued to serve as commissioner until Goodell officially replaced him on Friday September 1.

Tagliabue became NFL commissioner on October 26, 1989. During his tenure, the league added four new teams; saw four franchises move (including two franchises—the Rams and Raiders—from Los Angeles, the second-largest television market in the U.S.); the construction of seventeen new stadiums; began its own in-house television specialty cable network, the NFL Network; greatly increased television rights fees with its broadcasters, including the addition of the Fox network and its NFL programming; and maintained labor peace with the players' union.

The 2006 NFL Draft was held from April 29 to 30, 2006 at New York City's Radio City Music Hall. With the first pick, the Houston Texans selected defensive end Mario Williams from North Carolina State University.

Bernie Kukar and Tom White retired. Jerome Boger and Gene Steratore were promoted to referee.

The Seattle Seahawks host the Green Bay Packers in snow at Qwest Field, November 26, 2006

• End zone celebrations became more restricted. Players cannot celebrate by using any type of prop, or do any act in which they are on the ground. Players may still spike, spin the ball, or (until 2014), dunk it over the goal posts. Dancing in the end zone is also permitted as long as it is not a prolonged or group celebration. The Lambeau Leap, though, is still legal.[1]
• Defenders were prohibited from hitting a passer in the knee or below unless they are blocked into him. This rule was enacted in response to the previous season's injuries to Cincinnati Bengals quarterback Carson Palmer, Pittsburgh Steelers' Ben Roethlisberger, and Tampa Bay Buccaneers' Brian Griese.
• Down-by-contact calls could now be reviewed by instant replay to determine if a player fumbled the ball before he was down, and who recovered it. Previously, these plays could not be reversed once officials blew the whistle.
• The "horse-collar tackle" rule enacted during the previous 2005 season was expanded. Players are now prohibited from tackling a ball carrier from the rear by tugging inside his jersey. Previously, it was only illegal if the tackler's hand got inside the player's shoulder pads.
• To reduce injuries, defensive players cannot line up directly over the long snapper during field goal and extra point attempts.

Return of "The Duke" football

A Philadelphia fumble is recovered by Washington's Ade Jimoh, week 14

For the first time since Super Bowl IV at the conclusion of the 1969 season, the official NFL game ball was known as "The Duke" in honor of Wellington Mara, whose family owns the New York Giants. Son John is the current CEO of the team. The NFL first used "The Duke" ball in honor of owner Tim Mara (Wellington's father) made a deal with Wilson Sporting Goods to become the league's official supplier of game balls, a relationship that continued into its sixty-fifth year in 2006.[2]

"The Duke" ball was discontinued after the 1970 AFL–NFL merger, and the merged league began using a different standardized ball made by Wilson. The only other time that "The Duke" ball name was used was during the two "Thanksgiving Classic" games in 2004.

One side of the new 2006 "Duke" football featured the NFL shield logo in gold, the words "The Duke", and the NFL commissioner's signature. The obverse side has a small NFL logo above the needle bladder hole, the conference names between the hole, and the words "National Football League" in gold. As per the custom, specially branded balls were used for the first week of the 2006 season (the "Opening Kickoff") as well as for the Thanksgiving Day, conference championships, Super Bowl XLI and Pro Bowl games.

This was the first season that the NFL used a "flexible-scheduling" for the last few weeks of the season, allowing the league flexibility in selecting games to air on Sunday night, in order to feature the current hottest, streaking teams. This was implemented to prevent games featuring losing teams from airing during primetime late in the season, while at the same time allowing NBC to rake in more money off of the higher ratings from surprise, playoff-potential teams that more fans would enjoy watching.

Under the flexible-scheduling system, all Sunday games in the affected weeks tentatively had the start times of 1 p.m. ET/10 a.m. PT, except those played in the Pacific or Mountain time zones, which will have a tentative start time of 4 p.m. ET/1 p.m. PT (or 4:15 p.m. ET/1:15 p.m. PT if it is a doubleheader weekend). On the Tuesday 12 days before the games, the league moved one game to the primetime slot, and possibly one or more 1 p.m. slotted games to the 4 p.m. slots. During the last week of the season, the league could reschedule games as late as six days before the contests so that all of the television networks will be able to broadcast a game that has playoff implications.

Within each conference, the four division winners and the two wild card teams (the top two non-division winners with the best overall regular season records) qualified for the playoffs. The four division winners are seeded 1 through 4 based on their overall won-lost-tied record, and the wild card teams are seeded 5 and 6. The NFL does not use a fixed bracket playoff system, and there are no restrictions regarding teams from the same division matching up in any round. In the first round, dubbed the wild-card playoffs or wild-card weekend, the third-seeded division winner hosts the sixth seed wild card, and the fourth seed hosts the fifth. The 1 and 2 seeds from each conference then receive a bye in the first round. In the second round, the divisional playoffs, the number 1 seed hosts the worst surviving seed from the first round (seed 4, 5, or 6), while the number 2 seed will play the other team (seed 3, 4, or 5). The two surviving teams from each conference's divisional playoff games then meet in the respective AFC and NFC Conference Championship games, hosted by the higher seed. Although the Super Bowl, the fourth and final round of the playoffs, is played at a neutral site, the designated home team is based on an annual rotation by conference.

The following teams and players set all-time NFL records during the regular season:

All-Pro Team

• Buffalo Bills – Dick Jauron; replaced Mike Mularkey, who resigned after the 2005 season
• Detroit Lions – Rod Marinelli; replaced interim head coach Dick Jauron who replaced Steve Mariucci who was fired following Thanksgiving Day during the 2005 season.
• Green Bay Packers – Mike McCarthy; replaced Mike Sherman
• Houston Texans – Gary Kubiak; replaced Dom Capers
• Kansas City Chiefs – Herman Edwards; replaced Dick Vermeil who retired following the 2005 season
• Minnesota Vikings – Brad Childress; replaced Mike Tice
• New Orleans Saints – Sean Payton; replaced Jim Haslett
• New York Jets – Eric Mangini; replaced Herman Edwards
• Oakland Raiders – Art Shell; replaced Norv Turner
• St. Louis Rams – Scott Linehan; replaced interim head coach Joe Vitt who replaced Mike Martz who was not allowed to coach due to health problems during the 2005 season.

• Arizona Cardinals: The Cardinals moved from Sun Devil Stadium in Tempe to University of Phoenix Stadium in Glendale, with the University of Phoenix acquiring the naming rights
• Miami Dolphins: Dolphins Stadium was renamed to the singular Dolphin Stadium
• The New Orleans Saints returned to their home at the Louisiana Superdome in Week Three. Due to damage by Hurricane Katrina, the Saints' first 2005 home game against the New York Giants was moved to Giants Stadium. The Saints then played their remaining 2005 home schedule at Baton Rouge’s Tiger Stadium for four games and at San Antonio's Alamodome for three games.
• Tennessee Titans: The Coliseum was renamed LP Field after the manufacturing company Louisiana-Pacific (LP) acquired the naming rights

• The Minnesota Vikings added trim lines to the outside shoulders and sleeves, and the jersey sides and pants. The horn on the helmet was also modified to be slightly more defined. Purple pants were also worn at selected games.
• The New Orleans Saints began wearing black pants at selected games.

• Football Outsiders 2006 DVOA Rankings

• 2006 NFL Schedule (Last accessed April 6, 2006)
• NFL curtails end-zone celebrations from NFL.com, March 29, 2006 (Last accessed March 29, 2006)
• Process of game-time decisions will eliminate TV duds, create chaos by Michael Hiestand, USA Today, April 5, 2006 (Last accessed November 6, 2006)