Question: Which running back played during the 2017 Kansas City Chiefs season and was released after 9 seasons? 
Context: The 1964 Kansas City Chiefs season ended with a 7–7 record and no postseason appearance.  The Chiefs began the year with a 2–1 mark before dropping three consecutive games as several of the team's best players, including E.J. Holub, Fred Arbanas and Johnny Robinson, missed numerous games with injuries.  Arbanas missed the final two games of the year after undergoing surgery to his left eye, in which he suffered almost total loss of vision.  Running back Mack Lee Hill, who signed with the club as a rookie free agent and received a mere $300 signing bonus, muscled his way into the starting lineup and earned a spot in the AFL All-Star Game.  The club rounded out the season with two consecutive wins to close the season at 7–7, finishing second in the AFL Western Conference behind the San Diego Chargers.  An average of just 18,126 fans attended each home game at Municipal Stadium, prompting discussion at the AFL owners’ meeting about the Chiefs future in Kansas City. The 2017 Kansas City Chiefs season is the franchise's 48th season in the National Football League, 55th as the Kansas City Chiefs, the 58th overall the fifth under head coach Andy Reid, and first under general manager Brett Veach.  General manager John Dorsey was fired on June 22, 2017.  On July 10, the Chiefs promoted co-director of player personnel Brett Veach to general manager.  The Chiefs most notable transaction of the off-season came when they released all-time leading rusher Jamaal Charles after 9 seasons.  After being released, Charles signed with the Chiefs division rival, the Denver Broncos. Jamaal RaShaad Jones Charles (born December 27, 1986) is an American football running back for the Denver Broncos of the National Football League (NFL).  He played college football for the University of Texas, and was drafted by the Kansas City Chiefs in the third round of the 2008 NFL Draft. The Kansas City Chiefs Cheerleaders are the official cheer squad of the Kansas City Chiefs.  The group performs a variety of dance moves at the Chiefs home in Arrowhead Stadium.  The squad was originally a co-ed squad that was first formed in 1971, and eventually dropped the male cheerleaders, and renamed the squad as the Chiefettes.  In 1986, the squad changed to its current name, and male cheerleaders returned.  In 1997, the squad became all-female.  The group's annual tryouts take place in April.  Non-KCCC members can still join by participating in "Spirit Day", in which a group of 7th-12th grade cheerleaders performs with the squad at halftime.  The group also makes various appearances at military bases, trade shows, commercials, convention, county fairs, talk shows, grand openings, autograph sessions, photo shoots, golf tournaments, charity functions, and auctions.  The squad also has a "Junior Cheerleaders" program.  However, the program is separated in 4 age divisions: Angel Chiefs for 3-5; Junior Chiefs for 6-12; The Satellite Program for 6-17; as well as the Teen Chiefs for ages 13–17.  The squad also performs with Chiefs mascot KC Wolf, who also makes appearances.  Similar to the drum line of the Chicago Bears, the Chiefs also have the "Rumble", a drum line consisting of male and female musicians who pump up the crowd at each home game, and at various community events with the cheerleaders and KC Wolf.  A Chiefs Cheerleader, Susie, rides a horse called "Warpaint" out the tunnel before every home game.  This has been done until 1989, in which it was retired.  However, in 2009, for the Chiefs (and the American Football League's) 50th Anniversary, Warpaint was brought back.  Aside from the squad, the Chiefs also has the "Red and Gold Girls", which performs cheerleading stunts. The 1969 Kansas City Chiefs season was the team's 10th, their 7th in Kansas City, and also their final season in the American Football League.  It resulted in an 11–3 record and a 23–7 victory in Super Bowl IV over the NFL's heavily favored Minnesota Vikings.  The team beat their rivals, the Oakland Raiders in the final AFL Championship Game, claiming their third AFL Championship in franchise history.  The Chiefs were coached by Hank Stram, led by quarterback Len Dawson and a powerful defense led by Bobby Bell, Willie "Contact" Lanier, Buck Buchanan and Curley Culp.  The Chiefs' defense became the fourth defense in the history of pro football to lead its league in fewest rushing yards, fewest passing yards and fewest total yards.  The Chiefs were the second AFL team to win the Super Bowl and last AFL team to do so before the AFL-NFL Merger in the following season. The Kansas City Chiefs season was the franchise's 55th season and the second under the head coach/general manager tandem of Andy Reid and John Dorsey.  The Chiefs broke the crowd noise record on Monday Night Football against the New England Patriots on September 29, 2014 with a crowd roar of 142.2 decibels.  The Chiefs failed to match their 11–5 record from 2013, and missed the playoffs.  However, they defeated both teams that would eventually meet in that season's Super Bowl.  The 2014 Kansas City Chiefs became the first NFL team since the 1964 New York Giants, and the only team in the 16 game season era, to complete an entire season with no touchdown passes to a wide receiver. The Kansas City Chiefs season was the franchise's 46th season in the National Football League, the 56th overall and the third under the head coach/general manager tandem of Andy Reid and John Dorsey.  The Chiefs went through a poor start in their first 6 games as they were 1–5, and lost their star running back, Jamaal Charles due to a torn ACL in his right knee during an 18–17 Week 5 loss at home against the Chicago Bears.  In week 16, after their 9th consecutive victory and the Baltimore Ravens defeating the Pittsburgh Steelers, the Chiefs clinched a playoff berth, their 2nd in 3 years.  They are the first team since the 1970 Cincinnati Bengals to start the season 1–5 and qualify for the playoffs.  They also set the franchise record for the most consecutive victories, winning 10 in a row.  In their wildcard matchup, the Chiefs played the Houston Texans.  The Chiefs defeated the Texans 30–0 to earn their first playoff win in 22 years.  The following week, they were defeated by the New England Patriots in the Divisional round by a score of 27–20. William Jones Jr. (born September 10, 1966) is a former American football running back who played three seasons with the Kansas City Chiefs of the National Football League (NFL).  He was drafted by the Kansas City Chiefs in the twelfth round of the 1989 NFL Draft.  He first enrolled at Tyler Junior College before transferring to Southern Methodist University and lastly Texas State University.  Jones attended Corsicana High School in Corsicana, Texas. The 1990 Kansas City Chiefs season ended with an 11–5 record and Wild Card spot in the 1991 playoffs.  In Marty Schottenheimer's first playoff appearance with the Chiefs, they lost to the Miami Dolphins 17–16 in the Wild Card round.  Starting with the home opener, the Chiefs began an NFL-record 18-straight seasons with every home game sold out.  The streak was finally broken in the final home game of the 2009 Kansas City Chiefs season versus Cleveland. Herman Willie Heard Jr. (born November 24, 1961 in Denver, Colorado) is a former professional American football running back in the National Football League.  He played for the Kansas City Chiefs Kansas City Chiefs for six seasons.  Heard was a third round pick by the Chiefs out of Division II Fort Lewis College.  He played all of his NFL seasons in KC, garnering 13 rushing TDs and nearly 2,700 yards rushing in his career.
Answer: Jamaal RaShaad Jones Charles