Victor Cruz and Stevie Brown RFA Giants

If I remember correctly, you can't even offer a contract to the player unless you have the exact pick needed to reimburse the current team.. there's no bargaining allowed. And I believe it has to be your original pick also.. you can't offer a #1 or 2 you got in a trade from another team.

Need some input on this. When teams make the tender, do they not retain the right to accept a lower offer if it suits them to do so.
For example, if the Saints received an offer on Ivory of a 3rd RD Draft Pick, even thought Ivory was given a 2nd RD Tender ?