Without knowing why jill left, you can't really answer the question. I think the article assumes Jill did something that caused her to want to leave (she found

Without knowing why jill left, you can't really answer the question. I think the article assumes Jill did something that caused her to want to leave (she found a new job, networked and someone offered, etc...) but maybe it was the employer? The employer could have challenged her on time off compensation, insurance coverage, etc...