The 2013 Buffalo Bills season was the franchise's 44th season in the National Football League (NFL) and the first under head coach Doug Marrone. It was also the final season under the ownership of Ralph Wilson, who died in March 2014 at the age of 95. The team equaled their record from 2012 and missed the playoffs, increasing their playoff drought to 14 seasons. This was the first year of renewed leases on Ralph Wilson Stadium and for the Bills Toronto Series, both of which were signed in the preceding offseason.
The 2014 Buffalo Bills season was the franchise's 45th season in the National Football League (NFL), 55th season of competition, second and final under head coach Doug Marrone and the first in franchise history without Ralph Wilson as owner. The Bills defense continued its strong play from last season, finishing first in the league with 54 quarterback sacks. Overall, the Bills improved on their 6–10 record from 2013, finishing with a 9–7 record, their first winning season since 2004, yet they still missed the playoffs after a Week 16 loss to the Oakland Raiders.
The 2014 season was the Miami Dolphins' 45th in the National Football League (NFL), their 49th overall and their third under head coach Joe Philbin. Following the appointment of Dennis Hickey, the team had a new general manager for the first time since 2007 after Jeff Ireland was fired on January 7, 2014. The Dolphins equaled their 8–8 record from 2013 and missed the playoffs for a sixth consecutive season.
The 2014 Washington Redskins season was the franchise's 83rd season in the National Football League (NFL) and the first season under head coach Jay Gruden. The Redskins finished the season 4–12, slightly improving on their 3–13 record from 2013 and resulted in the departure of defensive coordinator Jim Haslett.
The 2014 season was the Baltimore Ravens' 19th in the National Football League (NFL) and their seventh under head coach John Harbaugh. The Ravens improved upon their 8–8 record from 2013, when they missed the playoffs for the first time since 2007. Additionally, the Ravens scored a franchise record 409 points and quarterback Joe Flacco passed for a career-high 27 touchdowns and 3,986 yards.
The 2014 Cincinnati Bengals season was the franchise's 45th season in the National Football League (NFL), the 47th overall and the twelfth under head coach Marvin Lewis. The Bengals qualified for the playoffs for the 4th consecutive season, but lost to the Indianapolis Colts in the first round, extending their playoff losing streak to 7 games, the 3rd longest losing streak in NFL history at the time, behind the Detroit Lions and Kansas City Chiefs who both had 8.
The 2014 Atlanta Falcons season was the franchise's 49th season in the National Football League (NFL) and the seventh and final under head coach Mike Smith. The Falcons were defeated by the Carolina Panthers in week 17, officially eliminating them from postseason contention for the second straight year. As a result, Smith was fired after his seventh year as head coach, after two straight years with a losing record.
The 2015 Miami Dolphins season was the franchise's 46th season in the National Football League (NFL) and the 50th overall. The Dolphins looked to improve on their 8–8 record from 2014 and return to the playoffs for the first time in seven seasons. However, Miami failed to clinch a playoff berth for the seventh consecutive season after a Week 14 loss to the New York Giants.
The 2015 season was the Baltimore Ravens' 20th in the National Football League (NFL) and their eighth under head coach John Harbaugh. Although picked by some, including Sports Illustrated's Peter King, to reach the Super Bowl, they had a disappointing season due to devastating injuries to team starters. 14 of their games were decided by 8 points or less and Joe Flacco, Justin Forsett, Steve Smith, Sr., and Terrell Suggs all suffered season ending injuries. They were eliminated from playoff contention in Week 14 with a loss to the Seattle Seahawks, in which they also suffered their ninth loss, resulting their first losing season in the Harbaugh era and first since the collapse of the Brian Billick era. Ultimately the Ravens finished with a 5–11 record and twenty-two players ended the season on Injured Reserve. The 5–11 record is their worst since the 2007 season.
The 2015 Tennessee Titans season was the franchise's 46th season in the National Football League (NFL), the 56th overall and the 19th in the state of Tennessee. Second-year head coach Ken Whisenhunt was fired on November 3 following a 1–6 start, and was replaced by tight ends coach Mike Mularkey on an interim basis. Despite slightly improving from their 2–14 season from the previous year, finishing with a 3–13 record, they finished with a lower Strength of Schedule, thus earning the right to the top pick in the 2016 NFL draft, later trading it to the Los Angeles Rams.
The 2016 season was the Baltimore Ravens' 21st in the National Football League (NFL) and their ninth under head coach John Harbaugh. With a week 12 win over the Cincinnati Bengals, the Ravens improved upon their 5–11 record from 2015, finishing the season 8–8. Despite the improvement, the Ravens failed to qualify for the playoffs for the second consecutive year after losing to the Pittsburgh Steelers on Christmas Day in Week 16. It was the first time the Ravens missed the playoffs in consecutive seasons since 2004–2005, and their first consecutive non-winning seasons since 1996–1999. They did, however, improve their position in the division, finishing in second place after finishing in third place for the previous three seasons.
The 2017 season was the Atlanta Falcons' 52nd in the National Football League (NFL), their first playing their home games at Mercedes-Benz Stadium, and their third under head coach Dan Quinn. They entered the season as the defending NFC champions and tried to defend their NFC title for a second consecutive trip to the Super Bowl after losing the previous year against the Patriots in Super Bowl LI after blowing a 28-3 lead. This was the Falcons' first year in Mercedes-Benz Stadium after spending the previous 25 seasons in the Georgia Dome, which was demolished on November 20, 2017. Mercedes-Benz Stadium opened as scheduled on August 26, 2017; however, its retractable roof system was incomplete. The roof of Mercedes-Benz Stadium remained in the closed position for most of the 2017 season, with the roof opened only during the September 17 game against the Green Bay Packers, as contractors continued to fully mechanize the roof.
The 2017 season was the Tampa Bay Buccaneers' 42nd in the National Football League (NFL), their fourth under the leadership of general manager Jason Licht, the 20th playing their home games at Raymond James Stadium and the second under head coach Dirk Koetter.
The 2017 season was the Jacksonville Jaguars' 23rd in the National Football League (NFL) and their first under head coach Doug Marrone. Marrone was hired after acting as the team's interim head coach for the final two games of the 2016 season. The team improved on their 3–13 record from 2016 and ended their 10-year playoff drought dating back to 2008 with a Week 15 win over the Houston Texans. They also secured their first winning season since 2007 after a 30–24 win over the Seattle Seahawks. On December 24, 2017, they clinched their third division title, and their first AFC South title following a Tennessee Titans loss. They won the wild card game against the Buffalo Bills 10–3, then headed to Pittsburgh, beating the Pittsburgh Steelers 45–42 to advance to the AFC Championship to face the New England Patriots, the first time that they had made the AFC Championship game since 1999. Despite leading for much of the game, the Jaguars would allow two fourth quarter touchdowns, and ultimately lost to the Patriots 24–20.
The 2017 season was the Baltimore Ravens' 22nd in the National Football League (NFL) and their 10th under head coach John Harbaugh. This was also the 10th season with Joe Flacco as the team's starting quarterback. The Ravens improved on the previous season's 8–8 record, but failed to qualify for the playoffs for the third consecutive season because of a last second touchdown in a 31–27 loss to the Cincinnati Bengals, combined with a Buffalo Bills' victory over the Miami Dolphins in Week 17.
The 2018 season was the Miami Dolphins' 49th in the National Football League (NFL), their 53rd overall and their third and last under head coach Adam Gase. During the offseason, the Dolphins tweaked their uniforms' orange color to better align with their classical past and history. For the second straight season, they also brought back their throwback uniforms from the Shula/Marino eras and wore them for three games.
The 2018 season was the Indianapolis Colts' 66th in the National Football League (NFL) and their 35th in Indianapolis. It was also their first season under head coach Frank Reich and second under the leadership of general manager Chris Ballard. Despite a 1–5 start, the Colts managed to improve on their 4–12 campaign from the year prior with a 38–10 victory over the Tennessee Titans, and a 5-game winning streak. On Week 16, the Colts achieved their first winning season since 2014 with a 28–27 win against the New York Giants. The next week, they beat the Tennessee Titans in a win or go home match-up to reach the playoffs for the first time since 2014 and became the third team in NFL history to qualify for the playoffs after a 1–5 start and first since the 2015 Chiefs.
The 2018 season was the Atlanta Falcons' 53rd in the National Football League (NFL), their second playing their home games at Mercedes-Benz Stadium and their fourth under head coach Dan Quinn. The Falcons attempted to be the first team to play the Super Bowl in their home stadium as an expected Super Bowl contender. However, the Falcons were riddled with injuries, losing 7 starters to IR with the Falcons stumbling to a 1–4 start.
The 2021 season was the Miami Dolphins' 52nd season in the National Football League (NFL), their 56th overall, and their third and final year under head coach Brian Flores, and sixth under general manager Chris Grier. Despite a 1–7 start to the season, Miami then won the next seven games, becoming the first team in NFL history to lose seven straight games and then win seven straight games in the same season. The 7-game win streak was their first since the 1985 season. They also became the sixth team in NFL history to win four or more consecutive games after losing seven in a row, after the 2009 Cleveland Browns, 1994 New York Giants, 1993 New England Patriots, 1984 Green Bay Packers, and the 1978 St. Louis Cardinals. However the Dolphins were eliminated from the playoffs for the fifth consecutive year after their win streak ended in Week 17 to the Tennessee Titans, combined with a win by the Los Angeles Chargers.
The 2023 season was the Miami Dolphins' 54th season in the National Football League (NFL), their 58th overall, their eighth under general manager Chris Grier and their second under head coach Mike McDaniel.