Then and Now: Oakland Raiders

Then and Now: San Diego Chargers

Then and Now: Buffalo Bills

If the Saints are to become the NFC South's latest worst-to-first sensation next season, new defensive coordinator Gregg Williams' revamped unit needs to lead the way.

The first two weeks of free agency have produced many big signings, but several players are still available. In other words, there's no need to panic if your team has yet to make a move.

After being an NFL head coach, Scott Linehan returns to his roots as an offensive coordinator. He brings the expertise to fix a Detroit offense that was among the league's worst last season.

Larry Fitzgerald's record-breaking run through the playoffs has the Cardinals in unfamiliar territory. Now he's looking to make one more lasting impression, this time on the game's grandest stage.

Atlanta and Arizona are infrequent playoff visitors, so neither team has many players who have dealt with this do-or-die tournament. How they respond Saturday could determine the game's winner.

With offensive stars such as Drew Brees, Reggie Bush and Marques Colston already on the roster, two hungry role players have helped keep the Saints in the thick of the playoff race.

The difficult starts for the NFL's three interim coaches this season is par for the course. Taking over teams already plagued by problems is an uphill battle with challenges on several fronts.

The 5-1 Buffalo Bills legitimately belong among the NFL's elite. And the main reason is Trent Edwards, who was the biggest difference-maker on Sunday against San Diego.

The Giants disposed of the mistake-prone 49ers on Sunday with ease. A more disciplined team might have beaten New York. The 49ers through seven games are far from that.