A Paramus dental practice booked a discovery call with us in November. Before we got into scope or budget, we asked one question: “What’s the one thing you tried that didn’t work?” Forty minutes later we had the entire decision tree of their last three years — budget, pain points, and the exact agency wound they were still nursing. We won the project on the spot. Total close time: 41 minutes.
That question is the single highest-leverage thing we ask. We learned it the expensive way, by losing six-figure deals to better discovery before we used it.
Why the question works on every layer at once
“What did you try that didn’t work” extracts four signals in one breath. Budget (they will name the price they paid). Pain (they will tell you exactly what hurt enough to act). Prior-agency PTSD (you learn what makes them flinch). Sophistication (their answer reveals whether they understand the problem they hired for).
Asking “what’s your budget” gets you a defensive number. Asking “what’s your goal” gets you a marketing-speak goal. Asking what didn’t work gets you the truth, because they have already paid for the answer and they are still angry about it.
The four signals decoded
- Budget anchor. “We paid an agency $8,000 for a redesign and it looked worse than what we had.” Now you know their tolerance is around $8K, and you know they will pay more for proof, less for promises.
- Pain priority. “We tried Google Ads for three months and got nothing.” They are revenue-focused, not aesthetic-focused. Your proposal leads with conversion, not with design mocks.
- Agency wounds. “They never returned our calls after launch.” Their #1 unspoken requirement is responsiveness. Build that into your contract and call it out by name.
- Sophistication tell. “The SEO guy said we needed 50 blog posts a month.” You now know they were sold volume, not strategy. Position yourself as the opposite, with proof.
The exact wording matters
“What didn’t work” is not the same as “what went wrong” (defensive). Not the same as “what’s been frustrating” (vague). The wording we use, exactly: “Walk me through the one thing you tried that didn’t work the way you hoped. Doesn’t matter if it was last year or five years ago.”
The “doesn’t matter when” tag is the unlock. It gives them permission to dig up the old wound that still bothers them, instead of giving you a sanitized recent example.
The follow-up that doubles the value
After they tell the story, ask: “What did you think the agency should have done differently?” This second question gets you their actual mental model of competent work. They are now telling you, unprompted, exactly what they want from you and how they will measure whether you delivered.
You did not have to guess. You did not have to send a questionnaire. They wrote your scope of work for you, in their own voice, in the first 20 minutes of the call.
What this is worth in dollars
Before we used the question, our discovery-to-close rate was 22%. Average deal size: $4,800. After we made it the second question of every call (right after “what brought you to us”), close rate moved to 51%. Average deal size: $7,200. On 40 discovery calls per year that is the difference between $42K and $147K in closed revenue. Same effort. One question.
Where most agencies blow it
Hearing the prior-agency story and immediately pitching against it. “Those guys are terrible, we would never do that.” You just turned a confession into a sales script and the prospect heard it. Deal cools. The correct move is to acknowledge the wound, ask the follow-up, and let them keep talking.
How AJD handles this
Every AJD discovery call starts with two questions and we listen for 30 minutes before we say anything about scope. We take notes the entire time. The proposal we send 48 hours later quotes the prospect’s own words back at them in the problem statement, so they read it and recognize themselves. Our 51% close rate is not a sales technique — it is the result of letting the buyer do most of the talking and writing down what they actually said. The skill is the listening, not the pitching.
Whether you work with us or not, try the question on your next three discovery calls. Use the exact wording. Then ask the follow-up. Then shut up and take notes. Your close rate will move within a month.
Book Free 15-Minute Discovery Call — we will run our discovery process on your business, so you can see the question in action. Walk away with a one-page brief whether we work together or not.
