For Innovation Teams
Your pilot proved the concept.
Ship the product.
Subtract to Ship is the method that moved stalled projects from proof-of-concept to production at RHI Magnesita, Magna, voestalpine, and Liebherr. The book is the full manual. The audit is the hands-on engagement.
The problem
The pilot worked. The product never shipped.
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Stalled between POC and production
The proof-of-concept got applause. Six months later it is still sitting on a shared drive, waiting for the next budget cycle or the right stakeholder alignment.
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Stakeholder defense, not customer discovery
Your team spends more time defending the initiative internally than learning from the market. Every review meeting adds scope rather than removing risk.
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Additive culture
The organization's default response to uncertainty is to add: another study, another feature, another alignment meeting. Nobody has permission to subtract.
Where the method has shipped
Tested in enterprise. Proven at scale.
Felix Lenhard has applied the Subtract to Ship methodology across twenty years of innovation consulting with enterprise clients.
- RHI Magnesita
- Magna
- voestalpine
- Liebherr
- Porsche
- ZF
- Lenze
- Benninghoven
The process
Four moves from stalled to shipped.
- 01
Subtraction Audit
Map every assumption, dependency, and feature attached to the initiative. Name the ones that are blocking the path to production, not enabling it. Two weeks.
- 02
Kill List
A one-page artifact: the three to five things being removed. Designed to survive a board defense, a steering committee, or a VP who was not in the room.
- 03
Defend the removal
Present the Kill List to stakeholders. Chapter seven of Validate covers the enterprise defense process: who needs to agree, what evidence to bring, how to frame loss as progress.
- 04
Ship
Get what remains into production. Most teams ship within 90 days of completing the Kill List. The constraint is permission, not capability.
Two ways in
Read the book or run the audit.
The book: Subtract to Ship: Validate is the full manual for the methodology. Self-serve, start any time.
The audit: Felix runs hands-on Subtraction Audits through Vulpine Industries. Two weeks, one Kill List, a clear path to ship.
FAQ
Questions from innovation teams.
- Can we use this inside a large organization with approval layers?
- The Kill List artifact was designed to survive a board defense. Chapter seven covers stakeholder alignment in enterprise.
- Is this just for product teams?
- No. The method applies to any initiative that has stalled between idea and execution — new service lines, internal tools, market entries.
- Do you offer workshops or training for our team?
- Felix runs Subtraction Audits through Vulpine Industries. Contact office@vulpine-industries.com for team engagements.
- How long does a Subtraction Audit take?
- Two weeks for the audit itself. Most teams ship within 90 days of completing the Kill List.
- Where can I read the full methodology?
- Start with the methodology page, then Subtract to Ship: Validate for the complete manual.
Stay close
Get a note when the next chapter ships.
The four volumes release September 15, 2026. The letter is the way to read excerpts ahead of release.