Question: Who was the English football player (defender) and manager during whose leadership the Manchester City signed the forward Francis Lee?
Context: James Lyons Hindmarsh (1885 – 16 March 1959) was an English football player and manager.  A half back and inside forward, he played in the Football League for Sunderland, Stockport County and Manchester City.  Hindmarsh also played in the Southern League for Fulham, Watford, Plymouth Argyle and Newport County.  He went on to manage Newport County for 13 years. Manchester City Football Club is an English association football club based in Manchester, which competes in the Premier League.  Founded as West Gorton (St Marks) in 1880, the club after several changes of identity adopted the name 'Manchester City' in 1894.  During the 1891–92 season, Manchester City joined the Football Alliance.  The team was elected to The Football League in 1892, where the club remained until 1992, when the League's First Division was replaced as the top level of English football by the Premier League. The 1970 European Cup Winners' Cup Final was a football match between Manchester City of England and Górnik Zabrze of Poland on 29 April 1970 at Prater Stadium in Vienna, Austria.  It was the final match of the 1969–70 European Cup Winners' Cup and the tenth European Cup Winners' Cup final.  Both sides made their first appearance in a European final.  Manchester City won the match 2–1 thanks to goals by Neil Young and Francis Lee.  The victory was City's only European trophy. The 1967–68 season was Manchester City F.C.'s seventy-sixth season of league football, and second consecutive season in the Football League First Division.  In the third full season under the management of Joe Mercer and Malcolm Allison, Manchester City were unfancied at the start of the season following a mid-table finish in 1966–67 Following the signing of forward Francis Lee, the club embarked on an unbeaten run that saw the club challenge at the top of the table.  A televised victory against Tottenham Hotspur in snowy conditions proved particularly notable, becoming known as the "Ballet on Ice". The 2009–10 season is Manchester City Football Club's eighth consecutive season playing in the Premier League, the top division of English football, and its thirteenth season since the Premier League was first created with Manchester City as one of the its original 22 founding member clubs.  Overall, it is the team's 118th season playing in a division of English football, most of which have been spent in the top flight.  The club started the season under the management of Mark Hughes who was controversially sacked in mid-December after the team notched up seven consecutive draws in the Premier League.  He was replaced by the Italian manager Roberto Mancini. William "Stockport" Smith was an English footballer.  His regular position was as an inside right, but he also played in various other forward positions and even as a wing half on occasion.  He played for Stockport County, Manchester City, and Newton Heath.  He joined Manchester City from Stockport in 1897 and scored 22 goals in 54 league appearances in three years at the club.  He is often confused with another William Smith who played for Manchester City at the same time; because of this, they were known to Manchester City fans by the clubs they were signed from, with this William Smith referred to as "Stockport Smith" and the other as "Buxton Smith". Anthony Keith Book is an English retired footballer and manager who was born in Bath, 4 September 1934.  Book spent a large part of his career in Non-League football with his home town club Bath City, before entering league football with Plymouth Argyle.  At the age of 31, he joined First Division Manchester City, where he became captain.  Under Book's captaincy, Manchester City won four trophies, making him the most decorated Manchester City captain of all-time.  Book had a five-year tenure as Manchester City manager from 1974 to 1979, and subsequently held various coaching roles at the club until 1996. Thomas Clark Fisher "Tommy" Johnson (19 August 1900 – 28 January 1973 in Dalton-in-Furness, Lancashire) was an English football player who played as either a centre forward or an inside forward.  He started his professional career at Manchester City in 1919, and represented the club throughout the 1920s.  Known for his powerful left foot shot, Johnson holds the record for the most goals scored by a Manchester City player in a single season, with 38 goals in 1928–29.  He played for Manchester City in the 1926 FA Cup Final, and was a member of the City side which won the Second Division in 1927. The 2002–03 season was Manchester City Football Club's first season back playing in the Premier League again after having been relegated from it at the end of the 2000–01 season.  This was the club's sixth season playing in the Premier League since its initial formation as the top tier of English football ten years earlier, with Manchester City as one of its original 22 founding member clubs.  Overall, this was Manchester City's 111th season playing in any division of English football, most of which have been spent in the top flight. Joseph 'Joe' Mercer OBE (9 August 1914 – 9 August 1990) was an English football player and manager.  Mercer, who played as a defender for Everton and Arsenal in his footballing career, also went on to be at the helm of Aston Villa, Manchester City and England as a manager.
Answer: Joe Mercer