E5: Message-market fit: How to test campaigns to find asymmetric results | Kellen Casebeer

10 Sept 2025 · 41 min
41:25

Podcast interview (GTM Engineer School) with Kellen Casebeer (founder, Deal Lab) about Go-To-Market engineering and achieving message–market fit. Kellen defines GTM engineering as engineering predictable, experiment-driven go-to-market outcomes using modern tools (Clay, GPT, automation). He outlines a campaign framework (market → segment → persona → angle), emphasizes rapid qualitative experimentation to find asymmetric results, and shares a high-impact play (RSS/podcast-driven outreach that yielded ~16 meetings from ~300 emails).

Questions this video answers

Kellen Casebeer, founder of the Deal Lab (D Lab).

Market → Segment → Persona → Angle (used to structure and test campaigns).

~300 emails sent that generated 16 meetings (≈5% meeting rate) in a healthcare IT enterprise campaign.

Clay (data/manipulation), ChatGPT (GPT), ScaledMail (inboxes), LeadMagic (email validation/finding), Smartlead (sending).

HubSpot.

Chapters

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