The AI Playbook for the C-Suite

Think Sharper
Lead Faster

Marcus is the curated AI prompt library and thinking system built exclusively for senior leaders — turning the world's most powerful AI tools into your strategic advantage.


Prompts that move the needle

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ProCEOStrategy
Defining Your Unfair Advantage
Surfaces your company's true, durable competitive advantage — moving beyond generic strengths to identify structural leverage from positioning, capabilities, timing, or operating model. Outputs a compelling paragraph explaining why you're uniquely positioned to win.
CFOFinancial Leadership
Deliver a Difficult Budget Reset Conversation
Helps craft a message that delivers difficult financial news with clarity and empathy — keeping leaders aligned rather than defensive, and maintaining credibility through a moment that could fracture both.
CMOCommunications
The Brand Reality Check
Identifies where how you describe yourself diverges from how customers and the market actually experience you — surfacing the disconnect between internal brand belief and external brand reality.
ProCOORisk
Run an Operational Risk Pre-Mortem
Transforms your risk register into an actionable tool — highlighting genuine exposures, superficial mitigations, and where leadership is avoiding the hard choices that would reduce real risk.
CTOPeople
Plan Your First 90 Days as a New CTO
Builds a rigorous, phased playbook for a new CTO — covering early relationship priorities, team reads, cultural navigation, and first battles that establish credibility as a trusted strategic architect.
ProCHROPeople
Build a Succession Planning Architecture That Works
Builds a succession architecture that genuinely develops internal candidates — reducing dependence on external hiring for senior roles and turning succession into a living process rather than a static document.

Decision Maker

Stress-test any decision in minutes

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The difference between a good decision and a great one is how thoroughly it's been pressure-tested. See how Decision Maker works with an example acquisition below.

Stage 01 of 06

Frame your decision

State the decision clearly before analysis begins.

Describe the decision you're facing in plain language. Below is an example acquisition decision — click Begin Analysis to see how the tool works.

Example decision

Whether to acquire our largest regional competitor for $85m, funded 60% debt and 40% equity, to accelerate market position ahead of a regulatory window expected to close in 12 months.


Executive Bookshelf

Apply concepts from the best business books

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100 of the most influential books for senior executives — distilled into actionable frameworks and ready-to-use prompts so you can put the ideas to work immediately.

Cover of Accelerate
Accelerate
Nicole Forsgren et al.
Management
Cover of An Elegant Puzzle
An Elegant Puzzle
Will Larson
Management
Cover of Antifragile
Antifragile
Nassim Nicholas Taleb
Strategy
Cover of Atomic Habits
Atomic Habits
James Clear
Productivity
Cover of Barbarians at the Gate
Barbarians at the Gate
Bryan Burrough & John Helyar
Finance

C-Suite leaders
use Marcus for
Strategy & Vision
People & Culture
Financial Leadership
Communications & Stakeholder Management
M&A & Growth
Risk & Governance
Innovation & Digital Transformation
Board Relations
Strategy & Vision
People & Culture
Financial Leadership
Communications & Stakeholder Management
M&A & Growth
Risk & Governance
Innovation & Digital Transformation
Board Relations
Strategy & Vision
People & Culture
Financial Leadership
Communications & Stakeholder Management
M&A & Growth
Risk & Governance
Innovation & Digital Transformation
Board Relations
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AI Platforms Covered
Claude
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ChatGPT
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Gemini
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Copilot
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Perplexity
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Claude
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ChatGPT
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Gemini
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Copilot
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Perplexity
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