With his deep knowledge of the game, a meticulous approach to preparation and an unflappable personality, Ron Greenwood was regarded as a great innovator during his time as manager of West Ham and England.
After a long career in club football, he was appointed by The FA in 1977 when Don Revie walked out to become coach to the United Arab Emirates and brought stability to a national side that had failed to qualify for the World Cup Finals in Argentina.
England were eliminated in the first group at the 1980 European Championship, but made a mark in the World Cup two years later.
Had Kevin Keegan accepted a late headed chance against Spain in the second group, they could have gone a long way instead of being eliminated without losing a match.
Greenwood, who resigned afterwards with 33 wins and 12 draws in 55 international fixtures, received the annual PFA Merit Award in 1985 and was inducted into The FA Hall of Fame in 2002.
He also received the MBE for services to football, which embraced spells as a centre half for Chelsea, Bradford Park Avenue, Brentford and Fulham, alongside one England B appearance.
He was in charge at Upton Park from 1961-74, winning The FA Cup in 1964 when West Ham beat Preston 3-2 and returning to Wembley a year later when Bobby Moore lifted the Cup Winners' Cup after 2-0 win over Munich 1860.
Greenwood died, aged 84, in February 2006.