You are managing a contract with a very recalcitrant vendor. They are doing a razor-sharp read of the statement of work, and if there is the slightest variance, they issue a change order to cover the cost. This is proving very frustrating, not only for you as a project manager, but for your entire organization. The contract is fixed price plus incentive fee. The highest risk on this contract falls to: Senior management The seller The project sponsor The buyer