Susan is a subcontract administrator (i.e. agent) for a large government contractor. She is the appointed agent given delegated authority (fully disclosed) to oversee service agreements and modify them – with consent provided by the vendor in writing – when necessary. Susan puts in her two weeks’ notice and moves away due to a family emergency, no longer employed by the large contracting firm. However, the period of performance is still valid for the agreement she signed for with the vendor, and they continue to invoice monthly as usual. Susan’s boss neglected to realize that there is an existing agreement in Susan’s name and, he/she only realizes it after the vendor calls the contracting firm, complaining about several outstanding monthly payments. What is the plan of action in this scenario?