Question: The  assistant manager for the Watford Football Club retired as a player in what year?

Context paragraphs:
2011–12 Watford F.C. season: Watford Football Club (also known simply as Watford, or as The Hornets) is an English football club from Watford, Hertfordshire.  The team competed in the Football League Championship in 2011–12, their fifth consecutive season in the second tier of English football since their relegation from the Premier League in 2006–07.  The 2011–12 season consisted of pre-season friendlies in July 2011, followed by competitive matches in the Football League, FA Cup and Football League Cup between August 2011 and April 2012.  Assistant manager Sean Dyche became manager in July 2011, following the departure of Malky Mackay.  The club's captain for the season was central midfielder John Eustace.  Watford's chairman was Graham Taylor, who previously took Watford from the Fourth Division to the First Division as manager.

2010–11 Watford F.C. season: Watford Football Club (also known simply as Watford, or as The Hornets) is an English association football club from the town of Watford, in Hertfordshire.  The 2010–11 English football season officially began on 1 July 2010, and ended on 30 June 2011, although Watford only played competitive fixtures between August and May.  The team competed in the Football League Championship for the fourth consecutive season, following relegation from the Premier League in 2006–07.  The club chairman was Graham Taylor, who as a manager took Watford from the Fourth Division to the top division of English football.  Their manager was Malky Mackay, and their captain was central midfielder John Eustace.

Sean Dyche: Sean Mark Dyche ( ; born 28 June 1971) is an English former professional footballer, who is currently the manager of Premier League side Burnley, a position he has held since October 2012.  During his playing career, Dyche played as a centre-back, making his professional debut in 1990 and representing Chesterfield - whom he captained and scored for in an FA Cup semi-final - Bristol City, Luton Town, Millwall, Watford and Northampton Town.  He was promoted with four of his six clubs.  After retiring as a player in 2007 he coached at Watford, including a stint as manager between June 2011 and July 2012.

1914–15 Watford F.C. season: Watford Football Club are an association football team from the county of Hertfordshire, England.  The 1914–15 season was their nineteenth season of league football, since joining the Southern League as West Hertfordshire for the 1896–97 season.  Watford finished the season as champions of the Southern League First Division, winning 22 and drawing 8 of their 38 league matches.  In other competitions, Watford were eliminated from the FA Cup in the sixth qualifying round by Rochdale, and from the Southern Charity Cup by fellow Southern League team Luton Town.  The club's manager was Harry Kent, and its top scorer George Edmonds, with 17 goals from 35 appearances.  Other notable players included Skilly Williams, who began what would be a 13-year period as the club's first choice goalkeeper, and Fred Gregory, whose goal against Gillingham sealed the title for Watford.  Gregory and Williams were also the only two men to play in all 40 of Watford's games.

Watford F.C.: Watford Football Club is a professional football club based in Watford, Hertfordshire, England, that plays in the Premier League, the highest level in the English football league system.  Founded in 1881 as Watford Rovers, the club entered the FA Cup for the first time in 1886, and the Southern League a decade later.  After finishing the 1914–15 season as Southern League champions under the management of Harry Kent, Watford joined the Football League in 1920.  The club played at several grounds in its early history, before moving to a permanent location at Vicarage Road in 1922, where it remains to this day.  Watford spent most of the following half century in the lower divisions of The Football League, changing colours and crest on multiple occasions.

List of Watford F.C. players: Watford Football Club is an English association football club based in Watford, Hertfordshire.  Formed as Watford Rovers in 1881, and renamed West Hertfordshire in 1893, the team joined the Southern League in 1896.  West Hertfordshire merged with local rivals Watford St. Mary's for the start of the 1898–99 season, adopting the club's present name.  Between 1898 and 1920, Watford competed in the Southern League, winning the championship in 1914–15.  The Southern League was suspended for the next four seasons due to the First World War.  On the league's resumption in 1919–20, Watford finished as runners up on goal average.  At the start of 1920–21, Watford joined the Football League Third Division, and transferred to the Third Division South when the league was reorganised the following season.  They have played in the Football League ever since, with the exception of 1939–1946, when competitive football was suspended due to the Second World War, and the 1999–2000 and 2006–07 seasons, when they competed in the Premier League.  In addition to the latter two seasons, the club also competed in the top division of English football between 1982 and 1988, achieving their highest league placing of second in the 1982–83 season.

List of Watford F.C. seasons: Watford Football Club is an English football club from Watford, Hertfordshire.  Formed as Watford Rovers in 1881, the club entered the FA Cup for the first time in 1886.  In the same year, they also entered the county-wide Herts Senior Cup, reaching the final six times over the next ten years.  Watford Rovers became West Hertfordshire in 1893, and joined the Southern League for the 1896–97 season.  The team started to change from one composed entirely of amateurs to one including paid professionals.  In 1898, West Hertfordshire merged with Watford St Mary's to form Watford Football Club.

Watford F.C. Player of the Season: Watford Football Club are an English football club, from Watford, Hertfordshire.  Founded in 1881 as Watford Rovers, the club has competed in the Football League since 1920, with the exceptions of 1999–2000, 2006–07, 2015–16 and 2016–17, when it competed in the Premier League.  First introduced by the "Watford Observer" in the 1972–73 season, the Watford F.C. Player of the Season award is voted for annually by supporters of the club.  It recognises the best overall performance by an individual player through the season.  Each year the winner is presented with the "Watford Observer Trophy" at the club's end-of-season awards dinner.

1919–20 Watford F.C. season: Watford Football Club is a association football team from the county of Hertfordshire, England.  The 1919–20 season was their twentieth season of league football, and their first since 1914–15 due to the outbreak of the First World War.  It was also their final season in the Southern League, having originally joined it as West Hertfordshire for the 1896–97 season, prior to a merging with another club and renaming in 1898.  Having started the season as reigning champions, Watford finished the season as runners up of the Southern League First Division on goal average.  They won 26 and drew 6 of their 42 league matches, compared to eventual champions Portsmouth's record of 23 wins and 12 draws.  Watford's only other competitive fixture was in the FA Cup, where they were eliminated in the 6th Qualifying round by fellow Southern League side Southend United.  The club's manager was Harry Kent, and its top scorer was George Edmonds, with 19 goals from 37 appearances.

Ron Gray (footballer): Ron Gray (25 June 1920 – 11 October 2002) is a former association football player, manager and scout.  Born in North Shields, wing half Gray started his professional year in 1938 with Sheffield United, later moving to Lincoln City, Notts County and finally Watford, before retiring at the age of 26 due to injury.  He started his managerial career at Watford, but his tenure was not particularly successful.  The club recorded their lowest ever football league finish, having to apply for re-election to the Football League in 1950–51.  His next managerial role was at Millwall.  After his first spell as manager, Gray stayed at the club as assistant manager to Reg Smith.  Gray was re-appointed as manager after Smith was sacked, and led the club to promotion as Fourth Division champions in 1961–62.  Gray later spent four seasons at Lincoln City from 1966 to 1970, when he signed future Watford manager Graham Taylor as a player.  After leaving Lincoln, Gray joined Ipswich Town as a scout, where he remained until his retirement in 1987.  and discovered many of the 1978 FA Cup and 1981 UEFA Cup winning team's under the management of Bobby Robson.

Supporting paragraphs: 2011–12 Watford F.C. season Sean Dyche
Answer: 2007