Question: The 2017 Carolina Panthers season is the franchise's 23rd season in the National Football League and the seventh under head coach Ron Rivera, on July 17, 2017, the team announced which former American football executive,had been relieved as general manager?

Context articles: 2016 Carolina Panthers season
2012 Carolina Panthers season
Bill Polian
2014 Carolina Panthers season
2013 Carolina Panthers season
Carolina Panthers
2015 Carolina Panthers season
2011 Carolina Panthers season
2017 Carolina Panthers season
Dave Gettleman

The 2016 Carolina Panthers season was the franchise's 22nd season in the National Football League and the sixth under head coach Ron Rivera.
 It was also the team's 20th season at Bank of America Stadium.
 The previous year, the Panthers achieved their highest win total in franchise history with a 15–1 record.
 They entered the 2016 season as the defending NFC champions and NFC South champions and hope to repeat as NFC champions, but after a 1–5 start, their worst since 2004 (where they also were defending NFC Champions), the Panthers finished the season at 6–10, missing the playoffs for the first time since 2012.
 The Panthers struggled throughout the 2016 season with injuries and lost of star players via Free Agency and retirement.
 The Panthers became the first team in NFL history to go 15–1 and miss the playoffs the following year, the first runners up in the Super Bowl to miss the playoffs the next year since the 2008 Patriots, and failed to win the NFC South for the first time in three seasons.
 This was also the first team to have at least 15 wins and finish last in their division the following season.
The Carolina Panthers season was the franchise's 18th season in the National Football League and the second under head coach Ron Rivera.
 A day after the Panthers loss to Dallas, general manager Marty Hurney was fired.
 Until a new general manager was hired (that hire eventually being Dave Gettleman), director of football operations Brandon Beane served as interim GM.
 In a statistical rarity, the team lost the first 13 of their coin tosses, an event with a 1 in 8,192 probability.
 In the thirteenth game, the Panthers asked fans on Facebook to make the call, but the vote ended in a 50/50 tie.
William Patrick "Bill" Polian, Jr. (born December 8, 1942) is an NFL analyst for ESPN and former American football executive.
 He was the Vice Chairman of the Indianapolis Colts of the National Football League from 1998 to 2011.
 He rose to league prominence as the General Manager of the Buffalo Bills, building a team that participated in four straight Super Bowls—the most consecutive appearances by any team—but lost each time.
 Following his stint in Buffalo, Polian went on to become the General Manager of the expansion Carolina Panthers.
The Carolina Panthers season was the franchise's 20th season in the National Football League and the fourth under head coach Ron Rivera.
The Carolina Panthers season was the franchise's 19th season in the National Football League and the third under head coach Ron Rivera.
 NFL.com ranked the Panthers' schedule as the strongest in the league, with opponents having a combined record of 138/116(2), along with a winning percentage of .543.
The Carolina Panthers are a professional American football team based in Charlotte, North Carolina.
 The Panthers compete in the National Football League (NFL), as a member club of the league's National Football Conference (NFC) South division.
 The club is worth approximately US$1.56 billion, according to "Forbes", and is controlled by founder Jerry Richardson and his family, who have a 48 percent stake; the remainder of the team is held by a group of 14 limited partners.
 The head coach is Ron Rivera.
The 2015 Carolina Panthers season was the franchise's 21st season in the National Football League (NFL) and their fifth under head coach Ron Rivera.
 This season marked the first time in team history they played on Thanksgiving.
The Carolina Panthers season was the franchise's 17th season in the National Football League and the first season for Ron Rivera as head coach.
 In Week 16 of the 2010 season, the team clinched the NFL's worst record of that year and was given the #1 pick in the 2011 NFL Draft, with which the team selected Auburn quarterback Cam Newton, the 2010 Heisman Trophy winner.
 They improved on their 2–14 record from 2010, and finished 6–10, missing the playoffs for the third year in a row.
The 2017 Carolina Panthers season is the franchise's 23rd season in the National Football League and the seventh under head coach Ron Rivera.
 The Panthers will come off of a disappointing 2016 campaign where they finished 6–10 and last in the NFC South.
 For the first time since 2011, the Panthers will not play the Seattle Seahawks during the regular season.
 During the offseason, the team's notable free agent signings included Matt Kalil, Captain Munnerlyn, and Julius Peppers.
 The latter spent his first eight seasons with the Panthers.
 On July 17, 2017, the team announced Dave Gettleman had been relieved as general manager.
Dave Gettleman (born David Gettleman February 21, 1951) is a former American football executive.
 He most recently served as the General Manager of the Carolina Panthers of the National Football League, until his dismissal on July 17, 2017, immediately prior to the start of training camp before the 2017-2018 season.