Culture as Calcification: The Pocket Rollout
You cannot melt an enterprise's culture — you chip it, one advocate-led pocket at a time.
- Difficulty
- Advanced
- Time to result
- ~months to results
- Steps
- 5
- Confidence
- 88%
Bastow's mental model for changing how a large organisation works: culture is calcification — limestone built up over years. You cannot dissolve it in one go; you chip it. Practically, that means finding one advocate with a small pocket of people, letting them run the new way of working, and letting success propagate laterally from pocket to pocket rather than by top-down mandate.
Origin
Janna Bastow, drawn from ProdPad's enterprise and government rollouts and multi-year transformation programmes.
Core principles
- 01Culture is set in stone and cannot be changed all at once — but a small space within it can.
- 02Change starts with an advocate, not a mandate.
- 03Lateral proof (pocket teaches pocket) is more durable than top-down instruction.
- 04It still requires buy-in from above — and above is often incentivised against you.
How to run it
- 1
Find the advocate
Locate the one person in a division or department who already gets the new way of working. Enterprise rollouts start here, not with an executive announcement.
- 2
Carve out a pocket
Give that advocate a small, bounded space — a startup lab within the business, one team, one department — and let them run the new practice without trying to convert the whole company.
Pro tip Pick a pocket with a leader who knows what they are doing; the pocket's credibility is what will sell the next pocket.
- 3
Let pockets multiply and band together
Wait for a second, third, fourth group to start doing it. When several groups band together and say 'we're starting a thing here', you have a coalition rather than a pilot.
- 4
Escalate only once the coalition exists
With multiple groups running, open the bigger conversation with the VP of strategy or whoever owns the tech area. Now you are reporting a movement, not requesting an experiment.
- 5
Name the incentive misalignment above you
Recognise that leadership is often incentivised toward stability and quarter-on-quarter growth, which the market rewards — and that this makes them unwilling to take the short-term dip required to move upwards.
Watch out Without buy-in from above the pocket will eventually be absorbed back into the calcification, however well it performs.
In the wild
Rather than attempting to change the mindset of an entire bank or health-tech incumbent, you designate a small subset as a startup lab, hand it to a capable leader, and let it operate differently. That group then teaches the adjacent section, which teaches the next.
→ Bastow reports ProdPad's enterprise and government transformations run exactly this way — multi-year, advocate-first, and only later escalated to a VP-level conversation once several groups have banded together.
An incumbent like HSBC has enough cash to survive twenty years, so it optimises for stability. Meanwhile customers assemble a Starling current account here, a mortgage there, savings somewhere else — startups take the juicier parts and leave the incumbent with the tougher ones.
→ Bastow's warning: incumbents that never take the dip end up losing the ability to innovate at all while their most attractive business is bitten away.
Common mistakes
Attempting a whole-company transformation at once
The culture is set in stone and cannot be changed all at once. Big-bang change programmes bounce off the calcification and burn the change agent's credibility.
Ignoring the incentives above the pocket
The incentives from above are often misaligned with what it takes to move a company in this direction — leadership is rewarded for stable quarter-on-quarter growth, not for the temporary dip that change requires.
Is it for you?
Best for
Product leaders, transformation leads, and vendors trying to introduce a new way of working into a large enterprise or government body where top-down mandates have failed.
Not ideal for
Small startups, where the culture is not yet calcified and a direct, whole-team change is faster and cheaper.
From the transcript
“I think of culture as calcification so calcification being the Limestone that you know is built up as slaughtered run over and that sort of…”
“we can take this pocket of people and go do something here and then”
“it generally starts with an advocate somebody who gets the way that we're working a division a department and then it starts from there”
From the episode
Building better product roadmaps
Janna Bastow (Mind the Product, ProdPad)