This document discusses different solutions for managing contingent workforces: Managed Service Providers (MSPs), Vendor Management Systems (VMSs), and Freelancer Management Systems (FMSs). MSPs and VMSs have been used historically to source, onboard, manage, and pay contingent workers through staffing agencies. FMSs are newer solutions that match companies directly with independent freelance workers for specific projects. While FMSs aim to address some contingent workforce needs, they do not provide the full suite of services that integrated MSP/VMS solutions offer in comprehensively managing an enterprise's total contingent labor spend and supplier relationships. The complexity of contingent workforce management is increasing as these workforces grow in size