Complex sentence: Due to the clashing schedule Bose went on to audition other actresses to substitute Koechlin, but felt that "something was missing" in each one, and she eventually decided to push the filming for three months to accommodate her.
Split into simpler sentences: Due to the clashing schedule Bose went on to audition other actresses to substitute Koechlin, but felt that "something was missing" in each one. She eventually decided to push the filming for three months to accommodate her.