They are more likely to negotiate against you than for you. They will tell you the company is offering less than what they actually are, and they will tell the company that you are asking for more than you actually are. Then, if it&#x27;s at all close, they don&#x27;t have to actually negotiate, they can find the middle on their own and both of you are happy  with the outcome because you didn&#x27;t know the original set-point.