Chung gained his first coaching experience while still a player at
Watford, under manager
Bill McGarry. When McGarry left to become manager of
Ipswich Town, he took Chung with him as assistant. At Ipswich, they won promotion to the
First Division as champions in 1968. Following a short period as manager of Swedish side
IFK Västerås, he returned to join Bill McGarry, now at
Wolverhampton Wanderers, as his assistant. As part of the management team, they guided Wolves to victory in the
1974 League Cup. The club were relegated in 1976 and McGarry departed, leaving Chung to be appointed manager. He won promotion back to the top flight as
Second Division champions in his first season. He led the club to a 15th-place finish in
1977–78, but the following season began with a run of 11 defeats in 14, leading to his dismissal following protests from the club's fans. After a period coaching in the
United Arab Emirates, he returned to England in 1985 as assistant manager to
Mick Mills at
Stoke City where he spent five years and was later in the backroom staff at
Blackburn Rovers in 1991–92. He had a spell as manager of non-league side
Tamworth between January 1992, and January 1993, before being appointed manager of
Doncaster Rovers in July 1994, a post he held until August 1996. His Doncaster spell brought two promising seasons on the field, but promotion challenges gradually petered out into mid-table finishes. In 1999, he was appointed director of football in
Barbados. In 2005, he joined the coaching staff at
Minehead. ==Personal life and death==