Question: Which former professional footballer became manager of Watford F.C. in July 2011?

Context articles: Andy MacLeod
2011–12 Watford F.C. season
Julian Watts
Duncan Welbourne
Wally Gould
Gregor Rioch
Andy Hessenthaler
Georges Tournay
Oscar Hold
Sean Dyche

Andy MacLeod (born 14 March 1969 in Glasgow) is a retired Scottish professional footballer.
 Since retirement from the professional game he played semi professional football at Highland league clubs, (Ross County F.C. Brora Rangers F.C. Wick Academy F.C. Foress Mechanics F.C).
 He Managed Brora Rangers F.C. at Highland league level.
 Following retirement from football he became a senior manager within the Highland Council.
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.
Julian Watts (born 17 March 1971) is an English professional footballer, best known as a player for Luton Town and Australian side Northern Spirit who, after a spell of two-and-a-half years, was the manager of Hallam.
 He resigned from his post in May 2013 before taking up the position as manager at Shirebrook Town later that month.
 At the start of season 2015–16 he became manager of Rainworth Miners Welfare.
Duncan Welbourne (born 28 July 1940) is an English former professional football player, coach and manager.
 Born in Scunthorpe, Lincolnshire, Welbourne started his professional career at Grimsby, as a wing half.
 In November 1963 he transferred to Watford, for a fee of £1,300.
 At Watford he converted to a full back, when the club started playing in a 4–4–2 formation.
 Welbourne set what was then a Watford record of 457 competitive appearances, breaking the 35-year-old record previously held by Tommy Barnett.
 His 280 consecutive Football League games remains a record.
 After finishing third in the club's inaugural Player of the Season award in 1972–73, Welbourne left Watford on a free transfer at the end of the 1973–74 season.
 He joined Southport, where he finished his playing career.
 He also took on a coaching role, and managed the team between September 1975 and January 1976.
Walter "Wally" Gould (born 25 September 1938 in Thrybergh, near Rotherham, South Yorkshire) is an English former professional footballer who made nearly 300 appearances and scored 71 goals in the Football League playing as a winger or forward for Sheffield United, York City and Brighton & Hove Albion.
 He later played for Durban United and Hellenic in South Africa.
 Wally Gould arrived on the Stoke City coaching staff at the start of the 1977–78 season to team up with George Eastham who had become manager.
 He was reserve team coach when Cyril Lea resigned in New Year 1980.
 Wally then stepped up to be number two to Alan Durban.
 He subsequently served Richie Barker when he became manager, but left in March 1982.
 There were rumoured to be differences between Gould and some of the senior players at this time, with one `training ground incident` resulting in Ray Evans, the captain, being suspended for two weeks.
 Days later Gould was replaced by Bill Asprey.
Gregor Rioch (born 24 June 1975 in Sutton Coldfield, England) is an English former professional footballer.
 Rioch has been a UEFA A licence coach since the age of 23 and became the holder of the prestigious UEFA Pro Licence coaching award in July 2011.
 He is currently the academy manager of Wigan Athletic.
 His father is former Scotland International and Arsenal F.C manager Bruce Rioch.
Andrew Hessenthaler (born 17 August 1965 in Dartford, Kent) is an English football manager and former player.
 He began his career in non-league football and did not turn professional until he joined Watford at the age of 26.
 In 1996, Hessenthaler joined Gillingham and spent the next ten years at the club as player and later player-manager, managing the club to its highest ever finish in the English football league system and becoming regarded as a legend of the Kent club.
 After leaving Gillingham, he had a short spell at Barnet before joining Dover Athletic in 2007.
 In his two seasons in charge he led the club to successive championships, of Isthmian League Division One South and the Isthmian League Premier Division.
 After three years at Dover, he became manager at Gillingham for the second time, but his contract was terminated at the end of the 2011–12 season.
 He returned to the club as assistant manager in 2014, before taking on a similar role at Leyton Orient the following year.
 In 2016, he was appointed manager of the club, but was sacked later the same year.
Georges Tournay (born 6 October 1960) is a French former professional footballer who is currently the manager of Championnat National side US Boulogne.
 During his career he played as a forward for Cambrai, Lens, Abbeville and Louhans-Cuiseaux and made over 200 league appearances in total.
 After retiring in 1992 he became manager of the Lens C team and was then named reserve team coach two years later.
 Between 1999 and 2005, Tournay was the assistant manager at Lens, and had a four-month spell in charge of the first team between February 2001 and June 2001.
 He later worked as the head of youth development at the club before returning to the assistant manager post under László Bölöni in January 2011.
Oscar Hold (19 October 1918 – 11 October 2005), former footballer and manager, was born in Carlton, near Leeds, England.
 Hold played for Everton F.C. and Norwich City F.C..
 He became manager of Doncaster Rovers in 1962, taking over from Danny Malloy, and also managed Turkish champion Fenerbahçe SK on (1964–65), with whom he won the Turkish League title and Atatürk Cup titles.
 He later coached a club in Jeddah, Saudi Arabia.
 In the seasons 1973–74 and 1983–84, he managed Apollon Limassol.
 He died in a Sunderland nursing home of bladder cancer in 2005.
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.