Question: Who managed the football club that earned a nickname due to being the only English club to go a 38-match league season unbeaten?

Context paragraphs:
1995–96 Gillingham F.C. season: The 1995–96 season was the sixty-fourth season in which football club Gillingham competed in the Football League, and the forty-sixth since the club's return to the League in 1950.  Having been saved from going out of business during the summer of 1995 after being taken over by new chairman Paul Scally, Gillingham finished the season in second place in the Football League Third Division, gaining promotion to the Second Division.  Goalkeeper Jim Stannard kept 29 clean sheets and conceded only 20 goals, both records for a 46-match League season.

Crawley and District Football League: The Crawley and District Football League was a football competition in England.  In its final season, it had three divisions, headed by the Premier Division, with Divisions One and Two below.  The league members could apply for promotion to the Combined Counties League or the Sussex County Football League.  After the 2005-06 season, South Park made the jump into the CCL.  The Crawley & District League Premier Division sat at step 7 (or level 11) of the National League System.  2008-09 Champions Bletchingley transferred to the Surrey Elite Intermediate League in 2009-10.  In 2009-10 Merstham Newton went the entire league season unbeaten to become Premier Division Champions for the second time in five years.

Charles Hoare (cricketer, born 1819): Charles Hugh Hoare (born 24 October 1819 at Mitcham, Surrey; died 4 April 1869 at Roke Abbey, Romsey, Hampshire) was an English cricketer.  He was the first captain of Surrey County Cricket Club following its formation in late 1845, leading them from 1846 until 1850.  During his time as captain Surrey played ten matches against other counties recognised as first-class.  Of these they won six, lost two, drew one and one match finished as a tie.  In 1850, his last season as captain, they won all four of their first-class inter-county matches.  They could thus be considered the "Champion County".  Surrey also played the All England Eleven that season in a match recognised as first-class even though Surrey had 14 players; the match was drawn, Surrey thus finishing the season unbeaten in first-class fixtures.

The Invincibles (football): In English football, "The Invincibles" has been used to refer to the Arsenal team of the 2003–04 season managed by Arsène Wenger, and the Preston North End team of the 1880s managed by William Sudell.  Preston earned the nickname after completing an entire season undefeated in league and cup competition, while Arsenal were undefeated in the league.

1987–88 Courage Cornwall League 1: The Courage Cornwall League 1 1987–88 was the first full season of rugby union within the ninth tier of the English league system, currently known as Tribute Cornwall League 1.  Illogan Park finished the league season unbeaten, and as the first champions were promoted to the Courage Cornwall/Devon League for season 1988–89.  Stithians lost all ten matches, finishing in last place and were relegated to Courage Cornwall League 2, along with St Just who finished one place above them.

1993–94 Iraqi National League: The 1993–94 Iraqi National League was the 20th season of the competition since its foundation in 1974.  The league title was won by Al-Zawraa for the fifth time in their history, and they also won the Iraq FA Cup to secure the double.  The top scorer, Younis Abid Ali, set a record for the most goals scored in one Iraqi League season (36) which still stands today, although this season was a lot longer than most other seasons.  Al-Zawraa lost only one match out of 50, going 38 games unbeaten on their way to the title.  They went one game unbeaten at the start of the 1994–95 season, completing a 39-match unbeaten streak that broke the record set by Al-Shorta (31) between 1979 to 1981.

2015–16 Kerala Premier League: The 2015–16 Kerala Premier League Season, Officially known as 3rd Dentcare Dental Lab Kerala Premier League due to sponsorship reasons, was the third season of the Kerala Premier League, Hosted by Muvattupuzha Football Club, professional football league played in Kerala since 2013–14.  The season features 8 teams in men's edition and 4 teams in women's edition.  The season kicked off on 16 April 2016.  Marthoma College Women’s Football Club emerged as the winners of the women’s edition and remained unbeaten in the league.  SBT beat Central Excise for 1–0 in the finals to clinch the Kerala Premier League title for the consecutive time.

1920–21 Burnley F.C. season: The 1920–21 season was the 33rd season of competitive football played by Burnley Football Club.  Burnley began the season confidently, despite not having played a match for almost four months before their first league fixture of the season.  After losing their first three games, Burnley embarked on a 30-match unbeaten league run from 4 September 1920 until 26 March 1921, winning the Football League First Division and becoming English champions for the first time in their history.  Burnley's unbeaten run stood as a Football League record for over 80 years, until it was bettered by Arsenal in the 2003–04 season.  Burnley ended the 1920–21 season on 59 points, having won 23 games, drawn 13, and lost 6.

Arsenal F.C.: Arsenal Football Club is a professional football club based in Highbury, London, England, that plays in the Premier League, the top flight of English football.  The club has won 13 League titles, a record 13 FA Cups, two League Cups, the League Centenary Trophy, 15 FA Community Shields, one UEFA Cup Winners' Cup and one Inter-Cities Fairs Cup.  It has won the second-most top flight matches in English football history, and is the only English club to go a 38-match league season unbeaten.

1994 World Club Challenge: The 1994 MMI World Club Challenge was a replay of the 1992 World Club Challenge, with 1993–94 Rugby Football League season champions Wigan facing the 1993 NSWRL season premiers, the Brisbane Broncos, this time in Australia.  Wigan were clearly the dominant club in the English game, having won the previous four consecutive Rugby Football League Championships and Challenge Cup tournaments.  The Broncos, having won consecutive premierships in 1992 and 1993, were the dominant team in the Australian game at the time.  In the World Club Challenge–this time played unusually late in the year–Wigan were looking to get revenge for their loss against Brisbane in the sides' previous encounter, and obtained a strong first-half lead.  The English club then survived a second-half comeback from Brisbane and won the match, cementing their position as the world's dominant rugby league club of the period.

Supporting paragraphs: Arsenal F.C. The Invincibles (football)
Answer: Arsène Wenger