Complex sentence: From 1973 to 1976, Bloom started public and artist relations departments for Gulf & Western's fourteen record companies and for ABC Records and launched the careers of Stephanie Mills and Chaka Khan.
Split into simpler sentences: From 1973 to 1976, Bloom started public and artist relations departments for Gulf & Western's fourteen record companies and for ABC Records. He also launched the careers of Stephanie Mills and Chaka Khan.