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Episode 8 · August 25, 2026 · 37:18
The Three Brain CFO: Making Smarter Financial Decisions With AI
Guest: Phil Nahajewski, partner at Florida CFO Group and creator of Philnancial OS
About this episode
Phil explains his "three-brain" approach combining instinct, judgment, and AI. Learn how a $100M cement company evaluated expansion in 24 hours using AI (vs. $20K/45 days traditionally), why Phil moved from ChatGPT to Claude, and how he turned 36 years of CFO experience into 63 AI-powered decision rules.
Chapters
- Meet Phil Nahajewski (0:00)
- The three-brain approach (1:01)
- A $20K decision made in a day (2:15)
- What each brain contributes (4:14)
- Why Phil moved to Claude (6:04)
- Building a second brain (10:25)
- When AI gets it wrong (12:15)
- Can AI replace the CFO? (13:10)
- Dueling AI assistants (14:24)
- Which jobs are most at risk? (16:23)
- The Monday morning philosophy (17:20)
- Building Philnancial OS (18:45)
- Turning experience into 63 rules (21:34)
- Mentoring the next CFO generation (23:36)
- How law and accounting will change (26:55)
- AI: cost cutter or capacity builder? (28:21)
- What AI should never decide alone (30:24)
- How finance teams will shrink (32:38)
- Phil's advice for business owners (33:28)
- Using AI for personal growth (33:53)
- Where to connect with Phil (36:08)
Visit Florida CFO Group or connect with Phil Nahajewski on LinkedIn.
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