Complex sentence: Promotion was not attained and manager Peter Mayo resigned due to work commitments during the 1986 season his successor Les Sutton failed to win a single League game, although the club won the Manchester Premier Cup, he was sacked at the end of the season.
Split into simpler sentences: Promotion was not attained and manager Peter Mayo resigned due to work commitments during the 1986 season. His successor Les Sutton failed to win a single League game, although the club won the Manchester Premier Cup, he was sacked at the end of the season.