What this means is that it is possible that after months of negotiation and the use of a wide variety of negotiation styles and negotiating techniques, you reach a detailed agreement with the other side and shake hands. You are all done, right? Well, maybe not. A week later, the other side’s procurement officer calls to tell you that there have to be some “revisions” to the deal. Perhaps they expect you to deliver the same service package faster than agreed upon and for less money. This happens after you’ve lined up resources internally and gotten commitments from your own vendors. In a situation like this, you end up trying to make the new deal work, since you can’t afford to lose these key customers.