Question: Who was the coach of the opposing team which beat the German football club, based out of Leipzig, in the 1986-87 European Cup Winners' Cup?

Context paragraphs:
1986–87 European Cup Winners' Cup: The 1986–87 season of the European Cup Winners' Cup was won by Ajax in the final against Lokomotive Leipzig.  The young Ajax side, which included the likes of Marco van Basten, Frank Rijkaard and Dennis Bergkamp, was guided to victory by its coach Johan Cruyff.  It was Ajax's only title in the competition, and was added to a hat-trick of European Cup wins from 1971 to 1973.  They also went on to win another European Cup and a UEFA Cup in the 1990s.

1989 European Super Cup: The 1989 European Super Cup was the 14th European Super Cup, an annual football match contested by the winners of the previous season's European Cup and European Cup Winners' Cup competitions.  The 1989 Super Cup was played on a home-and-away basis, and was contested by Milan, winners of the 1988–89 European Cup, and Barcelona, who had won the 1988–89 European Cup Winners' Cup.  After a 1–1 draw in the first leg at the Camp Nou in Barcelona, Milan won 1–0 at home to secure a 2–1 aggregate win and their first Super Cup.

1985 European Cup Winners' Cup Final: The 1985 European Cup Winners' Cup Final was a football match contested between Everton of England and Rapid Wien of Austria.  It was the final match of the 1984–85 European Cup Winners' Cup and the 25th European Cup Winners' Cup Final.  The final was held at Feijenoord Stadion in Rotterdam, Netherlands, on 15 May 1985.  Everton, which dominated throughout, won the match 3–1 thanks to goals by Andy Gray, Trevor Steven and Kevin Sheedy.  Everton were unable to defend the trophy: as league champions they would have entered the 1985–86 European Cup, but they were not permitted to play in either competition following the actions of rival Liverpool fans at the Heysel Stadium, which saw all English clubs banned from European competitions.

Beşiktaş J.K. in European football: Beşiktaş J.K.,is a professional football club based in Beşiktaş, Istanbul.  After winning the 1957–58 Federation Cup, a tournament that was held to designate the Turkey's representative in the European Cup, the club first participated in a European competition in 1958.  Since then, Beşiktaş J.K. regularly participated in European tournaments.  The club managed to reach the quarter-finals of 1986–87 European Cup, 2002–03 UEFA Cup and 2016–17 UEFA Europa League.

1987 European Cup Winners' Cup Final: The 1987 European Cup Winners' Cup Final was a football match contested between Ajax of Netherlands and Lokomotive Leipzig of East Germany.  It was the final match of the 1986–87 European Cup Winners' Cup and the 27th European Cup Winners' Cup Final.  The final was held at Olympic Stadium in Athens, Greece.  Ajax won the match 1–0 with a 20th-minute header from Marco van Basten.

1993 European Cup Winners' Cup Final: The 1993 European Cup Winners' Cup Final was a football match contested between Parma of Italy and Royal Antwerp of Belgium.  The final was held at Wembley Stadium in London, England on 12 May 1993.  It was the final match of the 1992–93 European Cup Winners' Cup and the 33rd European Cup Winners' Cup Final.  Parma beat Antwerp 3–1 and in doing so became the eighth different Italian team to win a European trophy.

Rosenborg BK in European football: Rosenborg Ballklub is an association football club from Trondheim, Norway.  The team has participated in 32 seasons of Union of European Football Associations (UEFA) club competitions, including 21 seasons in the European Cup and Champions League, 16 seasons in the UEFA Cup and Europa League, one season in the Cup Winners' Cup and one season in the Intertoto Cup.  Rosenborg has played six times in the UEFA Cup after qualifying via the Champions League and once via the Intertoto Cup.  It has played 206 UEFA games, resulting in 81 wins, 39 draws and 86 defeats.  The club's first appearance was in the 1965–66 European Cup Winners' Cup, and it subsequently entered tournaments in six seasons until 1974–75.  The club's next appearance was in the 1986–87 European Cup, and then in the 1989–90 European Cup.  Since then, Rosenborg has been involved in a UEFA tournament every season except the 2006–07 season.  The club's best performance is reaching the quarter-finals of the 1996–97 Champions League, while their only European trophy came when they co-won the 2008 UEFA Intertoto Cup.

1. FC Lokomotive Leipzig: 1.  FC Lokomotive Leipzig is a German football club based in the city of Leipzig in Saxony and may be more familiar to many of the country's football fans as the historic side "VfB Leipzig", the first national champions of Germany.  The team won the 2015-16 NOFV-Oberliga Süd and qualified for the 2016–17 Regionalliga Nordost, where it will face former East German champions FC Carl Zeiss Jena and BFC Dynamo.

West Bromwich Albion F.C. in European football: West Bromwich Albion Football Club is an English football club based in West Bromwich, West Midlands.  The club was founded in 1878 and has competed in the English football league system from its conception in 1888.  Since their first qualification to major European cup competition in 1966, they have participated in the Inter-Cities Fairs Cup, the European Cup Winners' Cup, the UEFA Cup, the Texaco Cup, the Anglo-Italian Cup, the Anglo-Scottish Cup, as well as winning the Tennent Caledonian Cup.  However, they have not competed in European cup competition since 1996, and not partaken in UEFA-sanctioned European cup competition since 1981.

1961 European Cup Winners' Cup Final: The 1961 European Cup Winners' Cup Final was a football match contested between Fiorentina of Italy and Rangers of Scotland.  It was the final of the 1960–61 European Cup Winners' Cup the first UEFA Cup Winners' Cup final.  It was the only time that the final was played over two legs.  The first leg was played at Ibrox Stadium, Glasgow and the second leg at the Stadio Comunale in Florence.  It was Rangers first European final and in doing so became the first British team to reach the final of a European football competition.  It was Fiorentina's second European final having previously reached the 1957 European Cup final.

Supporting paragraphs: 1986–87 European Cup Winners' Cup 1. FC Lokomotive Leipzig
Answer: Johan Cruyff