Complex sentence: During the year the line-up changed with Currie, Fish and Dummer leaving the band, during this time ex-Mud guitarist Rob Davis briefly joined the band, before moving into songwriting and production work.
Split into simpler sentences: During the year the line-up changed with Currie, Fish and Dummer leaving the band. At this time ex-Mud guitarist Rob Davis briefly joined the band, before moving into songwriting and production work.