Complex sentence: They signed to Polydor Records in 1983,bassist Glen Bishop was replaced by Kevin Mills (formerly of Specimen) but the label dropped them a year later after their first eponymous album failed to find any commercial success.
Split into simpler sentences: They signed to Polydor Records in 1983, and soon thereafter, bassist Glen Bishop was replaced by Kevin Mills (formerly of Specimen). The label dropped them a year later after their eponymous first album failed to find any commercial success.