Aaron and Spencer draw the line between uncertainty, which the brain treats like a game, and ambiguity, which it treats like a threat, then introduce DICAO, the five failure modes ambiguity can produce in leaders and teams.

In this episode, Spencer and Aaron expand on the Leadership Economics framework. Spencer opens by reviewing the show so far: scarcity, the production function, the AIME framework of allocation, information, motivation, and execution, and the six-principle playbook. This episode is the next layer down, what happens when you try to run the playbook and it does not work the way it should.

The core distinction is between uncertainty and ambiguity. Uncertainty is a die you know: six sides, equal odds, you just do not know this roll. Ambiguity is a bag of dice you do not know: you cannot even say what the distribution of outcomes is, so you cannot connect what you do to what you get. Aaron walks through what two decades of neuroscience since the MRI has shown, that the two are processed by different systems in the brain. Uncertainty can raise dopamine and motivate, the anticipation of a piano competition where you know how you prepared but not where you will place. Ambiguity does the opposite: it suppresses dopamine, raises cortisol, and reads as threat, and a high intolerance for it shows up alongside anxiety, depression, and OCD.

The good news is that tolerance for ambiguity is trainable. Spencer takes it to special operations, where you train across enough scenarios that whatever comes through the door has an answer, and where a great teammate is the best insurance policy against ambiguity. Aaron takes it to ordinary life, the first busted car door you ever have to get repaired versus the tenth.

From there the episode lays out the three layers of the Leadership Economics model. AIME is what you are always already doing. The playbook is the principles that make those tasks go well. DICAO is why we do not run the playbook even when we know it. Along the way they name marginal value uncertainty, the mathematical way of defining ambiguity, and Spencer tells the story of the boat he and Jill bought for the Great Loop, a marginal analysis that looked right, turned out wrong, and ended the right way because they were willing to experiment and willing to pull the plug.

Then they walk through DICAO, symptom by symptom. Discord: allocations drift toward the low-ambiguity option, the way teachers under high-stakes test incentives drill test problems instead of using the teaching methods they trained in, or the way whole Army companies train for the fitness test by only practicing the fitness test. Inconsequence: effort collapses when people cannot see how their input connects to any outcome, from a daughter who cannot study for a test with no defined material, to academia, to the soldiers of Black Hearts. Complexity: paralysis by analysis, decoy pricing, 187 salad dressings, and why the military always briefs three courses of action. Absence: failing to keep learning the production function as the world changes, from Blockbuster and Kodak to Uber watching Waymo, and the harder version closer to home, aging parents who are not aware that they are not aware. Overconfidence: the one failure mode that sometimes pays, because acting under ambiguity generates information, until refusing to look back turns confidence into bias.

They close on the point of the whole exercise: you cannot eliminate ambiguity, but you can always reduce it and raise your tolerance for it. These are principles for diagnosing why the playbook is not working, not another task list.

Mentioned in this episode

• Rob Shaw, "randomness is a lack of information about the system" (Episode 6)
• Ben Summers, allocating to the point of failure and the weapons-cache campaign (Episode 7)
• Adam Smith and the invisible hand
• DraftKings
• The Marine Corps lava monster commercial
• The 160th Night Stalkers, "I'd rather die than quit"
• Black Hearts by Jim Frederick
• Ben Britt, West Point economics student and Ranger School platoon mate of Spencer's
• Daniel Kahneman, Thinking, Fast and Slow, decoy pricing
• Barry Schwartz, The Paradox of Choice
• Richard Thaler and behavioral economics, Nudge
• Blockbuster and Netflix
• Kodak and digital photography
• Uber, Lyft, Waymo, and Tesla
• Anthropic
• General Martin Dempsey, the bias to act

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Rob Shaw, founding President and CEO of Echelon Bank and a 27-year Tampa Bay banker, on the soft information behind every good loan, the culture of a brand-new bank, and why character is the only hard no.

Rob Shaw has spent 27 years in Tampa Bay banking, from AmSouth's management training program through leadership roles at Northern Trust, Signature Bank, USAmeriBank, NorthStar Bank, and Flagship Community Bank. In April 2026 he opened Echelon Bank, the first new bank in Tampa Bay in five years, with a founding team of bankers he has known for decades and his West Point classmate Jonathan Field as board chair.

The conversation starts in physics and works its way to banking as a way of getting at the truth about a borrower. Rob walks through the five C's of credit, why character is the only hard no, and the soft information that is hard to discern just from a FICO score. The few loans he regrets, he says, all trace back to ignoring his gut, or that "hard-to-define" information. He also explains why he tells his team they are in the manufacturing business, turning their neighbors' deposits into loans, and why he wants problems on the table early rather than handled quietly. Spencer extends the currency of commitment idea from earlier episodes, and Rob explains the echelon formation that gave the bank its name. He closes with the advice he wishes he had taken sooner, in his own words: it's later than you think.

Mentioned in this episode

• Isaac Newton and predictive equations
• The three-body problem
• The Heisenberg uncertainty principle
• AmSouth Bank, now part of Regions Bank
• FICO and the Fair Isaac Corporation; TransUnion, Experian, and Equifax
• Elon Musk
• David Feaster of Signature Bank ("eat your frogs in the morning")
• Greg Olivier, Echelon Bank board member
• Jonathan Field, Echelon Bank board chair
• Major Steven Reich and the Night Stalkers; A Soldier's Story (Fox Sports)
• The Tour de France and the echelon formation

Featured guest:

• Rob Shaw — Following an honorable discharge after serving as a Lieutenant in the U.S. Army Finance Corps, Mr. Shaw began his banking career in 1998 with AmSouth Bank as a Management Associate. After completing the bank's executive training program in Birmingham, AL, he relocated to Tampa and quickly advanced from credit analyst and underwriter into commercial relationship management. He later joined Northern Trust as a Commercial and Private Banking Officer before moving into the community banking sector as the Clearwater Market Executive for Signature Bank. Following the bank's sale, he joined USAmeriBank as Pinellas County Team Leader, where he spent six years helping build one of the region's top-performing banking organizations. In 2014, Mr. Shaw became the Pinellas County Market President for NorthStar Bank and was later promoted to Senior Lender and COO. After the bank's sale in 2017, he partnered with two veteran bankers to acquire Flagship Community Bank in 2019. From the capital raise and due diligence process through post-acquisition leadership, he played a key role in the bank's growth and success, serving as Senior Loan Officer and overseeing business development through 2024. Over the course of his career, Mr. Shaw has personally closed hundreds of loans totaling approximately $530 million and has led teams responsible for well over $1 billion in commercial real estate and C&I lending transactions. Mr. Shaw earned a degree in Physics Engineering from United States Military Academy at West Point, holds an MBA from University of Phoenix, and is a graduate of the Stonier Graduate School of Banking at The Wharton School of the University of Pennsylvania. He is now the President and CEO of Echelon Bank in Clearwater, Florida. (Echelon Bank, Echelon Bank on LinkedIn)

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