Sometimes employers will engage search firms to save them the valuable time of advertising or combing through dozens of resumes. Contingency recruiters tend to work with more mid-level management and professional positions, but, this is not always the case. Retained firms generally work with the higher level clinical or administrative positions. One thing you will be assured of is that if a recruiter is working on a position, that means that the employer is willing to pay a fee. That usually means that the position is a valued position and one worth closer inspection on your part.
Genius is one percent inspiration and ninety-nine percent perspiration.