与招聘供应商（供应商）建立和维护关系。与第三方机构（如人员配备和公司）建立并保持关系以进行扩展。使用这些关系有效地实施采购流程。 Establishing and maintaining relationships with recruitment vendors (suppliers). Create and maintain relationships with third-party agencies such as staffing and firms to expand. Use these relationships to implement the sourcing process effectively.