Moral / personal issue or just plain business?

[Account Closed]

So here's the scenario. A friend recently went to inquire about job opportunity w/ a consulting company that is working for her current company. The consulting company is outsourced to do similar work as employees of the company she's currently working in. Over the years, she has made friends w/the consultants.

BACKGROUND AND POSITION
Back to the seeking job opportunity at the consulting company... So my friend inquires and is eagerly greeted by the manager (executive officer), and she is informed that there is a position that they'd like to open up to her. The position is THE "lotto jackpot" of an opportunity - second in command of the consultants who would be reporting to the executives. This position is a highly regarded position in the hierarchy of her industry. Typically, one would need a masters and a few certificates, many, many years of experience, and connections to get into that position. Also, getting into this position would open up many more doors for her into other companies in industry.

THE OFFER
Everything seems great... EXCEPT... THIS promotion/position is an existing position that one of her colleague/associate/"friend" is working! The consulting company had been planning to let this friend (Jane) go for logistic (and performance) reasons. It just hadn't been official since they did not have anyone perfect to replace her - nor have they had the time to address the needed replacement.

MORAL ISSUE OR JUST BUSINESS?
If you were my friend, what would you do? Would you take the offer (a position they were planning on filling and that she just happened upon) or would you pass the lotto type opportunity that hardly ever occurs in her industry? The executives and other consultants know her well and the quality work she does - her reputation precedes her. As far as the consulting co and executives are concerned, it's a golden opportunity that has landed in their lap and are excited she approached them. Also, forgot to mention, my friend had already cleared it w/her boss expressing interest in seeking work w/the consulting company; she was granted approval/blessing.

If she takes the position, would that be a betrayal? If she passes it up, her upside is slim and even after getting more school, degree and alphabets, there's no guarantee she'll have that opportunity. Is this just business and the opportunity should be seized? What do you think? what would you do?