Glenn Dietzel

Decision Performance Advisor | Private Executive Decision Rooms | Defensible decisions before commitment

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I help founders, CEOs, and leadership teams make and defend consequential decisions before they commit significant capital, people, time, or reputation. Most organizations don't suffer from a lack of ideas.

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They suffer from decision drag, unclear ownership, competing advice, execution built on weak assumptions, and expensive mistakes that could have been prevented much earlier. Most leaders already have advisors, mentors, boards, consultants, and increasingly AI. Few have a disciplined decision process that gives them a genuine competitive advantage. I lead Consequential Decision Reviews that help executive teams identify the real decision, challenge assumptions, pressure-test evidence, expose tradeoffs, and move forward with confidence because the decision is defensible, not because uncertainty has disappeared. Leaders leave able to explain exactly what decision is being made, why it is defensible, what evidence supports it, what remains uncertain, and what would cause them to change course. Whether they're sitting in a board meeting, investor presentation, institutional review, or executive off-site, the reasoning stands up to scrutiny. For organizations that want a lasting capability, I build customized Executive Decision Rooms: governed thinking environments where consequential decisions are framed, challenged, documented, revisited, and connected over time. The reasoning behind important decisions no longer disappears into meetings, slide decks, inboxes, or people's heads. The organization develops a durable decision memory that preserves executive judgment and strengthens future decisions. My background includes more than three decades advising founders and executive teams on growth, GTM, AI adoption, monetization, organizational execution, and strategic transformation. Those experiences inform the decision process. They are not the product. Companies can buy the same AI, hire the same consultants, and access the same expertise. Few build a better decision process. Success looks like this. When you leave a Consequential Decision Review, you'll know exactly what decision you're making, why you're making it, what evidence supports it, what assumptions are carrying it, what would change your recommendation, and you'll be able to defend that decision before a board, investor, executive team, institution, regulator... or yourself months later.