Complex sentence: Shankly bought Ray Kennedy from Arsenal at the end of the season, his last act as Liverpool manager; he resigned soon afterwards, citing the need for a break, and was replaced by his assistant Bob Paisley.
Split into simpler sentences: Shankly bought Ray Kennedy from Arsenal at the end of the season, which was his last act as Liverpool manager. He resigned soon afterwards, citing the need for a break, and was replaced by his assistant Bob Paisley.