The Screening Margin: Why Hiring Software Decides Whether Agency Headcount Scales or Stalls

Hiring software stops being an HR line item the moment an agency's constraint shifts from winning clients to staffing delivery. The strategic stake is margin per seat: an ATS that compresses time-to-hire by days protects retainer profitability, while AI screening that misfires on candidate engagement quietly damages the client relationship the hire was meant to serve. The agencies that win the next 18 months will treat screening automation as a governed delivery process, not a sourcing shortcut.