Telling a lead vendor that their performance is below standard is one of the conversations PI marketing directors avoid the longest. The relationship has history. The vendor rep is someone you like. And without data, the conversation feels like an accusation rather than a review.
When you have performance data, the conversation changes entirely. You're not sharing an opinion — you're sharing a measurement. You're not asking the vendor to “do better” — you're giving them specific, addressable performance targets. And you're not threatening to cut the relationship — you're providing the clarity any good vendor needs to improve.
Here's how to structure and execute a data-driven vendor performance conversation effectively.
Related guide: See our complete guide to evaluating PI lead vendors — the 7 metrics that define vendor quality and how to build a vendor scorecard.
Before the Conversation: Know Your Numbers Cold
The most important preparation for a vendor performance conversation is making sure your data is accurate and that you understand it well enough to defend it. A vendor who challenges a metric you can't explain loses you control of the conversation immediately.
Prepare a one-page performance brief with the following data, covering the last 90 days:
- Total leads received from this vendor
- Total spend (from your invoices)
- Leads reaching intake, rejection rate, intake contact rate
- Signed cases attributed to this vendor
- Cost per signed case — their number and your firm average
- Conversion rate — their number, the trend, and your firm average
- Case severity distribution if available
- Geographic distribution if relevant
Know which metrics are the primary problem (the ones driving the poor grade) and which are secondary context. Lead with the most important issue — usually cost per case relative to firm average — and use the other metrics to explain the root cause.
Framing the Conversation: Collaborative, Not Confrontational
The goal of a vendor performance conversation is improvement, not punishment. Most vendors want to understand their performance data and address problems — because solving the problem keeps their budget intact and protects the relationship.
Frame the opening accordingly. “We do monthly performance reviews for all our vendors, and I wanted to walk through your data from the last 90 days because I think there are some things we should look at together” is a very different opening than “We're not happy with your leads.” Both start the same conversation, but one creates a problem- solving dynamic and the other creates a defensive one.
$1,950
Vendor Cost Per Case
63% above firm average
$1,200
Firm Average CPC
Baseline benchmark
$1,500
Improvement Target
Within 25% of average
$1,950
Vendor Cost Per Case
63% above firm average
$1,200
Firm Average CPC
Baseline benchmark
$1,500
Improvement Target
Within 25% of average
Structure of the Conversation
Part 1: Share the Data Without Editorializing (5 Minutes)
Walk through the performance brief data point by data point. State the numbers, don't frame them yet. “Over the last 90 days, we received [X] leads from you at a total spend of [$X]. Those leads produced [X] signed cases. Our cost per signed case from your leads was [$X]. Our firm average across all vendors was [$X].”
This approach has two benefits. First, it gives the vendor time to absorb the data before you draw conclusions from it. Second, if there's a data discrepancy, you'll find it here rather than mid-argument.
Some vendors will dispute attribution — they'll claim your signed case count is too low because you didn't capture all the cases their leads produced. Be prepared to walk through your attribution methodology. If the dispute is legitimate, you want to know about it and correct it. If it's a deflection tactic, having your methodology documented and ready to explain prevents the conversation from going sideways.
Part 2: Ask Before You Conclude (10 Minutes)
Before you explain what the data means, ask the vendor what they see. “Looking at these numbers — particularly the conversion rate trend and the cost per case relative to our average — what's your read on what's driving this?”
This is not a courtesy. It's diagnostic. Vendors often have context you don't:
- They may know they changed a sourcing strategy in month two that affected lead quality — information that helps you interpret the trend.
- They may have data showing that your firm's contact rate dropped during the same period — which could indicate an intake issue rather than a lead quality issue.
- They may have already identified the problem and have a concrete corrective action underway.
Any of these answers changes how you proceed. Asking first surfaces that information before you commit to a conclusion.
Part 3: State the Impact and the Standard (5 Minutes)
Once you've heard the vendor's perspective, state clearly what the data means for the relationship. Be specific. “Our firm average cost per case is $1,200. Your cost per case is $1,950. That's 63% above our average, and it's been above 140% of average for two consecutive months. At that cost per case, we can't justify maintaining your current budget level.”
Then state your firm's performance standard explicitly: “To maintain current budget, we need to see cost per case below $1,500 over the next 60 days. That would put you within 25% of our firm average, which is our threshold for active vendors.”
The standard should be achievable. Telling a vendor their CPC needs to drop by 60% in 60 days is not a performance target — it's an exit notice in disguise. If you want the vendor to improve and stay, set a standard that a committed vendor with a correctable problem can actually hit.
Part 4: Agree on Specific Corrective Actions (10 Minutes)
The most productive vendor conversations end with a specific action plan, not just a performance target. Ask the vendor: “What specific changes can you make to your sourcing, targeting, or lead qualification process that would improve conversion and reduce our cost per case?”
Push for specifics. “We'll try to improve quality” is not an action plan. “We'll tighten our keyword targeting to exclude [specific terms] and add a pre-qualification question about insurance coverage” is an action plan.
Document whatever the vendor commits to, and send a written summary after the call. This isn't about creating a paper trail for litigation — it's about giving both sides a shared reference point for the 60-day check-in.
Part 5: State the Budget Decision (5 Minutes)
End the conversation with the budget decision that results from the performance review. Don't leave this implied.
“Based on the current performance data, we're reducing your monthly budget from $18,000 to $12,000 effective next month. We'll re-evaluate at the 60-day mark based on the changes you've described. If cost per case improves to within 25% of our firm average, we'll consider restoring the original budget.”
The vendor now knows: what the problem is, what the standard is, what the corrective actions are, what their budget is, and when and how they'll be re-evaluated. That's a complete picture. There's no ambiguity about what's expected or what happens next.
Handling Common Vendor Responses
“Your conversion rate is low because your intake is slow.”
This may be true. Don't dismiss it. Instead, respond: “We're open to that possibility. Can you share your data on contact attempt timing for your leads to our firm versus other firms? We'll look at our internal speed-to-contact data at the same time. If intake speed is the variable, we want to fix that too.”
If intake speed is genuinely the issue, the vendor has done you a favor by raising it. If they can't produce the comparative data, the claim was a deflection and you can move on.
“One month doesn't tell the whole story.”
Respond: “Agreed, which is why we're looking at a 90-day rolling window. All three of the last monthly periods show cost per case above our average, with a declining conversion rate. The trend is what concerns us.”
This is why the 90-day window matters. A vendor can argue away a single bad month. Three consecutive months of the same pattern is harder to dismiss.
“We have better performance with [competing firm].”
Respond: “We can only act on our own data. Our cost per case from your leads over the last 90 days is [$X]. If there's something specific about how other firms are working your leads that we could replicate to improve our conversion, we're absolutely open to that conversation.”
Competitive references are not performance data. Your firm's numbers are your firm's numbers. Stay anchored to what your data shows.
The Right Tone for the Long Term
Vendor relationships that survive honest performance conversations are usually stronger afterward. A vendor who knows you track their performance rigorously and will hold a direct conversation when the data warrants it treats your account differently than a vendor who believes you're just going to pay invoices indefinitely.
The firms that get the best performance from their vendor portfolios are the ones with the most transparent and consistent accountability practices. That reputation compounds: vendors know which clients demand quality and which clients don't. Being known as a firm that measures, tracks, and has direct conversations is one of the most effective vendor management tools you have.
Related guide: See our complete PI marketing budget guide — benchmarks by firm size, how to tie budget to signed case targets, and the allocation framework.