By TL;DR: These 15 diagnostic questions filter quality IT staffing providers from legacy agencies in 60 minutes. Quality providers answer each question concretely with numbers (“under 2% acceptance rate, 24-72 hour first-profile, zero conversion fees”). Legacy providers hedge with phrases like “depends on the role” or “we evaluate case-by-case.” This article gives you all 15 with the answers you should expect.
Sales calls with IT staffing providers cover a lot of ground in 60 minutes. These 15 questions surface the structural quality of the provider quickly. Ask them in order; quality providers respond fluently in 5 to 8 minutes per question; legacy providers slow down at questions 3, 7, and 12.
Vetting Quality (Questions 1-3)
Q1: How many candidates do you accept per 100 applications? Quality answer: under 2 percent. Legacy answer: 10-30 percent or hedge.
Q2: Walk me through your vetting funnel end-to-end. Quality answer: four-stage process with rubrics (technical, AI-native tooling, English C1+, behavioral). Legacy answer: “we do a technical screen and behavioral interview” with no detail.
Q3: Do you test for AI-native tool fluency? Specifically Cursor, Claude Code, GitHub Copilot, LangChain? Quality answer: yes, with documented test methodology. Legacy answer: “we test general skills” or no.
Compliance and Structure (Questions 4-6)
Q4: In which countries do you own legal entities? Quality answer: lists specific countries (Vietnam, Philippines, Indonesia, etc.). Legacy answer: “we work with partner entities” (means partner-dependent EOR, risk on you).
Q5: What is your time-to-first-matched-profile commitment? Quality answer: 24-72 hours SLA-backed. Legacy answer: 2-4 weeks.
Q6: What is your median engagement length? Quality answer: 12-18 months. Legacy answer: 4-6 months (engineer churn).
Commercial Terms (Questions 7-10)
Q7: What conversion fee do you charge if I want to move a contractor to FTE? Quality answer: zero with EOR-managed path. Legacy answer: 0.5 to 3 months of contract revenue.
Q8: What is your replacement guarantee duration? Quality answer: 30-60 days on Talent Subscription, 60-90 days on Direct Hire. Legacy answer: 14 days or none.
Q9: Show me a sample monthly invoice. Is the rate all-inclusive? Quality answer: single blended rate that covers everything. Legacy answer: itemized with transition fees, admin charges, markup surprises.
Q10: What is the termination notice period? Quality answer: 30 days. Legacy answer: 60-90 days.
Service and References (Questions 11-15)
Q11: Can I see 3 client references in my sector at my stage with engagements over 12 months? Quality answer: yes, here are 3-5 contacts. Legacy answer: generic case studies on website.
Q12: How do you handle worker misclassification risk? Quality answer: provider liability via owned EOR, indemnification language in MSA. Legacy answer: “the contract handles it” without specifics.
Q13: What HRIS and reporting do you provide? Quality answer: client portal with engagement metrics, monthly velocity reports. Legacy answer: spreadsheets.
Q14: Do you cover both onshore and offshore, or are you geography-specific? Quality answer: clear about coverage. Legacy answer: vague claims of “global reach” without specifics.
Q15: What is your year-over-year client retention rate? Quality answer: 85%+ for quality providers. Legacy answer: hedge or no data.
The Quality vs Legacy Pattern
After running these 15 questions across 50+ IT staffing vendor pitches in 2025-2026, the pattern is consistent. Quality providers answer with specific numbers in under 60 minutes. Legacy providers hedge on 3-5 questions, deflect to case studies, or schedule follow-up calls for the hard questions.
Three questions that are particularly diagnostic: Q1 (vetting acceptance rate), Q4 (owned entities), and Q7 (conversion fees). If a provider hedges on all three, they are legacy and the engagement will be expensive to course-correct later per Forrester‘s 2026 IT Staffing Procurement research.
How to Use the 15 Questions
A practical structure for the call:
- Start with Q1-3 (vetting). If the provider stumbles, end the call early.
- Move to Q4-6 (structure). Owned entities and 24-72 hour SLA are non-negotiable for 2026.
- Q7-10 (commercial) covers the real money. Zero conversion fees and 30-day notice are 2026 standard.
- Q11-15 (service and references) confirm the provider can support the engagement over time.
Time-box the call to 60 minutes. Quality providers cover all 15 in 50 minutes. If you are still on Q5 at minute 45, the provider is hedging.
Follow-Up Questions That Surface Real Problems
The 15 headline questions filter quickly, but each headline answer benefits from a targeted follow-up that confirms the underlying capability. SIA‘s 2025 Buyer Conversations Study analyzed 200 enterprise sales calls and identified the follow-ups that produced the highest signal-to-noise ratio.
Follow Q1 (vetting rate) with “what does that rate look like by stage?” Quality providers break the funnel down: applications received, technical assessment pass rate, AI-tool fluency pass rate, behavioral pass rate, offers extended, acceptance. Providers who quote a top-line rate but cannot break it down are reporting a marketing number rather than an operational metric.
Follow Q3 (AI-native tools) with “send me a sample assessment and the rubric.” Documented assessments exist; verbal claims of testing AI fluency without documented rubrics typically mean unstructured chat-based screening.
Follow Q5 (time-to-match) with “what is your engineer bench size today?” 24-72 hour matching requires a pre-vetted bench. Providers who promise 24-72 hour matching with a bench of 50 engineers are overpromising; quality providers typically maintain benches of 200-500 across role types.
Follow Q7 (conversion fees) with “what is the structural mechanism, direct payroll transfer or EOR-managed?” Zero conversion fees only work cleanly through EOR-managed conversion. Providers offering zero fees with direct payroll transfer either have a hidden buyout structure or absorb classification risk during the transition.
Follow Q11 (references) with “can I see anonymized exit-interview data from past engagements?” Quality providers maintain structured exit data; legacy providers do not. The willingness to share exit data is one of the strongest indicators of operational maturity.
Follow Q15 (client retention) with “what is your engineer retention?” Client retention and engineer retention are different metrics. Engineer retention under 80% drives engagement instability even if client retention looks healthy.
How to Interpret Evasive vs Direct Answers
Listening for HOW questions are answered surfaces as much signal as the answers themselves. Gartner‘s 2026 Sales Diligence Framework identifies four evasion patterns and what each typically conceals.
“It depends on the role” deflection. Structural questions (acceptance rate, owned entities, replacement guarantee duration) are not role-dependent. Hedging on these means the provider does not have a known answer or is making the number up. Press once: “What is the rate across your portfolio? I understand specific roles vary, but I am asking about the average.”
Numbers without source attribution. “Our retention is industry-leading” without a number is marketing. “Our 12-month retention is 87% based on engagements started in 2023-2024” is operational. The latter is verifiable in references; the former is not.
Pivots to capability statements. When asked about a specific failure or churn case, weak providers pivot to “we have strong processes to prevent that.” Quality providers describe the specific failure, what they learned, and what changed. The pivot signals immature post-mortem culture.
Vague time horizons. “We can probably match candidates in a few weeks” rather than “first profiles in 48-72 hours, candidate selection in 7-10 days, engagement start in 14 days.” Vagueness on timeline correlates with actual timeline performance.
Quality providers answer in numbers, with attribution, with willingness to discuss failure modes, and with specific time horizons. Each evasion pattern is a yellow flag; two or more across the 15 questions is a stop signal.
Integrating the 15 Questions Into Procurement Scorecards
The 15 questions work as a quick filter, but enterprise procurement processes typically require a formal scorecard for vendor selection. Three categories map the 15 questions to standard procurement scorecards.
Capability dimension (Q1-3, Q14, Q15). Vetting depth, AI-native testing, geographic coverage, year-over-year retention. Weight: 30-40% of total score for IT staffing engagements per Forrester 2026 procurement weighting recommendations.
Compliance dimension (Q4, Q12). Owned legal entities, worker misclassification protection. Weight: 25-35% for engagements crossing borders or in regulated industries.
Commercial dimension (Q5-10, Q13). Speed, retention, conversion fees, replacement, invoicing, termination, reporting. Weight: 30-40%.
Scoring each dimension 1-5 across the 15 questions produces a total out of 75. Forrester 2026 benchmarks suggest quality providers score 60+, borderline providers score 45-59, and legacy providers score under 45. The scoring discipline prevents the most common procurement bias: weighting brand recognition over operational reality.
Questions to Ask AFTER Signing (90-Day Check-in)
Vendor diligence does not end at signing. The 90-day check-in surfaces issues early enough to address them before they become structural. Five questions for the 90-day review.
“Did the engineer’s first 30 days match the timeline you committed in the RFP?” If sourcing took 45 days when the SLA was 14, the provider missed a commitment that should be flagged.
“Has the actual blended rate matched the quoted rate, including any escalators or surprise charges?” Rate creep within the first 90 days is uncommon at quality providers; if it appears, escalate.
“How fast has the provider responded to escalations? Has the success manager been engaged proactively?” Responsiveness in the first quarter sets the pattern for the engagement.
“What signals are you seeing on engineer engagement and team integration?” Internal stakeholder feedback (engineering manager, tech lead) surfaces fit issues before they affect productivity.
“If you had to make the vendor decision again today, would you choose the same provider?” Re-asking the headline question 90 days in produces honest signal. If the answer is “no,” the engagement should be restructured or replaced before it becomes embedded.
Questions That Reveal AI-Era Provider Maturity
The original 15 questions cover the timeless quality criteria. Five additional questions surface whether a provider has adapted to the 2024-2026 shift toward AI-augmented engineering work. Gartner‘s 2026 IT Sourcing Framework treats these as the new dividing line between modern and legacy providers.
“How do you assess fluency with AI development tools beyond a checkbox on the resume?” Quality providers run live tests with Cursor, Claude Code, or GitHub Copilot during the technical assessment. Legacy providers rely on self-reported tool experience.
“What is your engineer-to-engineer AI tool sharing culture?” Quality providers run internal communities where placed engineers share prompts, custom configurations, and tooling workflows. The community amplifies tool fluency across the bench.
“How do you measure productivity gains from AI tooling in your placements?” Quality providers track AI-assisted productivity metrics for placed engineers (PR throughput pre/post AI tool adoption, lines of test coverage generated, time-to-first-PR). Most providers cannot answer this; the few who can typically deliver materially higher engineer productivity.
“What is your hiring volume specifically for AI-native specialty roles (LLM, Agents, MLOps)?” Specialty bench depth, measured by active placements rather than resumes in a database, indicates real market position. SIA finds providers with under 20 active AI specialty placements struggle to deliver vetted profiles within the 72-hour SLA for AI roles.
“How do you keep engineer skills current as AI tools evolve?” Quality providers offer ongoing training programs, conference budgets, and dedicated learning time. Legacy providers treat engineer skill development as the engineer’s problem.
Get Concrete Answers from Second Talent
Quality answers to all 15 questions for our service:
- Vetting: Under 2% acceptance, four-stage funnel, AI-native testing built in
- Owned entities: Vietnam, Philippines, Indonesia, Singapore, Malaysia, Thailand, Taiwan, Hong Kong, China
- Speed: 24-hour first-profile SLA
- Retention: 14+ month median engagement length
- Conversion: Zero fees via EOR-managed path
- Guarantees: 30-60 day replacement on Talent Subscription, 60-90 on Direct Hire
- Pricing: Single blended rate, transparent invoices
- Termination: 30-day notice
- References: Available on request, sector-matched
- Compliance: Full provider liability via owned EOR
Common starting points:
