Conversation so far:
Did Exposé suffer any changes in 1986?
During the recording of the group's first studio album Exposure, the personnel of the group changed.
Who was replaced in Exposé?
Reports vary, but according to People magazine, one of the original singers quit while two of the girls were fired midway through the recording of the first album.
Did Exposé have any other changes?
Shortly thereafter, Casañas pursued a solo career and Lorenzo pursued other ambitions; they were replaced by Jeanette Jurado and Gioia Bruno.

Question: What provokes all these changes
Self-contained rewrite: What provoked all these changes to Exposé?