From Wikipedia: John “Jock” Stein CBE (5 October 1922 – 10 September 1985) was a Scottish football player and manager. He became the first manager of a British side to win the European Cup, with Celtic in 1967. Stein also guided Celtic to nine successive Scottish League championships between 1966 and 1974.
Stein worked as a coalminer while playing football part-time for Blantyre Victoria and then Albion Rovers. He became a full-time professional football player with Welsh club Llanelli Town, but returned to Scotland with Celtic in 1951. He enjoyed some success with Celtic, winning the Coronation Cup in 1953 and a Scottish league and Scottish Cup double in 1954. Ankle injuries forced Stein to retire from playing football in 1957.
Celtic appointed Stein to coach their reserve team after he retired as a player. Stein started his managerial career in 1960 with Dunfermline, where he won the Scottish Cup in 1961 and achieved some notable results in European football. After a brief but successful spell at Hibernian, Stein returned to Celtic as manager in March 1965. In thirteen years at Celtic, Stein won the European Cup, ten Scottish league championships, eight Scottish Cups and six Scottish League Cups. After a brief stint with Leeds United, Stein managed the Scottish national side from 1978 until his death in 1985.