Complex sentence: Upheaval within the band occurred from 1983 onwards, first Bill McDonough left, then his brother Guy McDonough died in 1984, various other members left and their 1985 release "Between a Rock and a Hard Place" was expensive but sales were disappointing.
Split into simpler sentences: Upheaval within the band occurred from 1983 onwards, first Bill McDonough left, then his brother Guy McDonough died in 1984, various other members left. Their 1985 release "Between a Rock and a Hard Place" was expensive but sales were disappointing.