For this process the applicants do not have to demonstrate that they have a job offer in the US; however, they must to demonstrate that they will keep working in the field of endeavor.
The criteria for the extraordinary ability include: Receipt of lesser nationally or internationally recognized prizes or awards for excellence;
Membership in associations in the field which demand outstanding achievement of their members;
Published material about the alien in professional or major trade publications or other major media;
Evidence that the alien has judged the work of others, either individually or on a panel;
Evidence of the alien’s original scientific, scholarly, artistic, athletic, or business-related contributions of major significance to the field;
Evidence of the alien’s authorship of scholarly articles in professional or major trade publications or other major media;
Evidence that the alien’s work has been displayed at artistic exhibitions or showcases;
Performance of a leading or critical role in distinguished organizations;
Evidence that the alien commands a high salary or other significantly high remuneration in relation to others in the field;
Evidence of commercial successes in the performing arts.