Complex sentence: The past several months had been full of setbacks for Family, with Grech having left for Blind Faith, King forced to leave for getting too deep into drug addiction, and their first U.S. tour having proved a disaster.
Split into simpler sentences: The past several months had been full of setbacks for Family. Rick Grech left for Blind Faith, Jim King forced to leave for getting too deep into drug addiction, and their first U.S. tour proved to be a disaster.