From your own link: > Either external or internal to the employer’s workforce; or So no, no public posting is required. It could all be internal recruiting an

From your own link: > Either external or internal to the employer’s workforce; or So no, no public posting is required. It could all be internal recruiting and still pass the bar for H1-B. "Good faith" is also a very broad definition so it wouldn't surprise me that a very minimum amount of work is considered within the scope of that.