A hiring manager friend at a Seattle unicorn once asked me to look over resumes. I didn't have a full grasp of how prevalent these "consultancies" are and was puzzled by all the jargon-filled, similar-looking resumes from people who were clearly working for "consultancies". Now I know, they were all looking for a ramp off! Some (many?) may even make great hires, but it' s hard to tease them out by looking at those resumes.