Proof of Concept Explained: The Three Types Every Sales Professional Must Know
Michael Humblet
YouTube creator
Matt Macnamara
Account Executive at IBM | IT Sales Expert
Discovery calls are the foundation of a successful sales process. Done right, they help build trust, uncover critical needs, and move prospects closer to a buying decision. In this guide, we’ll walk through the strategies shared by Matt Macnamara, an experienced sales leader, to structure your discovery calls for maximum impact.
Imagine a discovery call like a car ride: you’re the driver, and the prospect is in the back seat. If you don’t share the route (your agenda), the prospect might try to grab the wheel and steer the conversation off-course. That’s why your agenda is critical—it keeps you in control.
Here are the four components of a great sales agenda:
1. Verify Time - Always ask if the prospect has any hard stops.
2. Share the Action Items - Outline what you’ll cover to ensure the time is productive.
3. Establish an Upfront Contract - Set clear expectations for next steps.
4. Invite Feedback on the Agenda - Ask if there’s anything the prospect wants to add or adjust.
An upfront contract is a clear, no-pressure agreement about what happens next if the conversation progresses—or if it doesn’t.
Example from Matt’s live call:
Why It Works:
Matt emphasizes that losing control of the conversation is the last place you want to be. When the prospect drives the conversation, you risk missing key discovery moments or losing sight of your goals.
How to Stay in Control:
What Happens?
You run out of time before addressing critical topics.
Solution:
Always ask about hard stops at the beginning: “Do you have the full 45 minutes, or do we need to adjust the flow?”
What Happens?
The call ends without clear follow-up, leaving the deal in limbo.
Solution:
Set an upfront contract and revisit it during closing. “Earlier, we agreed the next step would be a proof of concept. Let’s schedule that now.”
Ready to master discovery calls? Start implementing these verbal agenda strategies in your next meeting. By structuring your calls the right way, you’ll not only build trust but also keep deals moving forward with confidence!
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Michael Humblet
YouTube creator
Brock Mesarich | AI for Non Techies
YouTube creator
Eric Nowoslawski
YouTube creator
How Triple Session works
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Patterns roll up across reps, deals, and objections. You see which behavior is costing pipeline, not just which rep is behind.
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Training is assigned against that specific gap: short, expert-led sessions tied to the behavior you just measured.
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Managers coach from evidence instead of memory. A scorecard, the moment in the transcript, and the one thing to practice next.
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