Most staffing programs rank their suppliers on fill time, retention, and headcount. But when each supplier employs workers under different classifications, benefits, and support models, those numbers aren't measuring the same thing. Here's why supplier performance and employment type can't be separated, and what it takes to compare suppliers on truly equal terms.
Finally Comparing Suppliers on the Same Terms
Ask a procurement lead which staffing supplier performs best, and you'll usually get an opinion, not an answer grounded incomparable data. One supplier may look strong on fill time, another on retention, and another on total contractors on site. But those numbers don't mean much if every supplier is operating under a different employment model. Performance is shaped by the worker experience behind it: whether people are classified consistently, supported when issues come up, offered benefits or paid time off, or left as 1099s with limited management or oversight. Two people can be doing the same job on the same team and still have completely different employment realities, which means you're not just comparing supplier performance; you'recomparing the conditions those suppliers create.
That makes supplier comparison harder than most programs want to admit. According to a recent survey, 77% of organizations have replaced a staffing agency at least once. That kind of turnover makes consistent performance measurement critical, especially when a supplier change can disrupt operations and add time and cost to the program.
This isn'ta reporting problem you can fix by asking suppliers to try harder; it's structural. When every supplier employs workers independently and reports performance through its own lens, there isno common baseline for understanding what is driving the results.
Performance Based on Gut Feel Is Becoming Too Risky
Most programs end up choosing suppliers based on relationships and reputation, not performance, because performance is rarely measured on a level field. A supplier that looks great on fill time might be placing workers into a weaker employment experience that leads to churn. One with strong retention may be slower to fill because it invests more in screening, onboarding, and worker support. Without knowing whether each supplier is operating under comparable employment terms, "our best supplier" often comes down to gut feel.
Moving from gut feel to data-driven decisions is already a priority for many mature program owners. SIA’sMay 2026 Workforce Solutions Buyer Surveyfound that supplier NPS differed by more than 40 points between low- and mid-maturity programs. More mature programs were nearly three times as likely to use AI and analytics to track performance, underscoring how critical consistent measurement has become.
The inconsistency compounds because suppliers aren't just sourcing talent; they'redefining the employment experience attached to that talent. Classification standards, benefits, paid time off, issue resolution, payment terms, and worker support all vary by vendor. When a worker stays, leaves a contract early, performs well, or disengages, the result says as much about the employment model behind the placement as it does about the supplier's recruiting ability. That's why supplier performance and employment type cannot be separated.
What Comparable Actually Requires
Real supplier comparison requires two baselines: one employment standard for every worker, regardless of which supplier sourced them, and one set of metrics applied consistentlyacross the supplier network. The first controls for the worker experience. The second controls for the scorecard. Without both, programs are left trying to compare outcomes produced under different circumstances.
myBasePay'sVendor of Record (VOR) model builds both into the program design. Every worker placed through the network is employed under the same standard: consistent classification, benefits, paid time off, and support, no matter which supplier sourced them. Every supplier is then evaluated against the same performance metrics inside one automated, AI-native platform, so the scorecard reflects actual execution rather than differences in employment structure.
The Question Worth Asking at Renewal Time
The next time a supplier contract comes up for renewal, ask what you'rereally comparing.If one supplier's results are tied to one employment model and another's are tied to something entirely different, the scorecard is not giving you a clean read. You don't have a supplier performance program until every supplier is measured against the same employment standard and the same definition of success.
If you want to see how myBasePay standardizes supplier performance and employment terms across your network, talk to a workforce advisor at myBasePay.com.