Most AI transformation programmes try to move the whole company up one ladder. That is the wrong frame. It treats size as an asset when size is the drag.
Old-style capability maturity rewarded scale. AI-native maturity rewards the absence of legacy. The relationship has flipped.
The mainframe core could not have built the PC. So IBM didn't ask it to. Twelve people, a separate building, a different P&L, permission to break every rule. Then reverse absorption.
IBM's mainframe business had the wrong cost structure, wrong distribution model, wrong customers, wrong incentives to build a personal computer. If IBM had asked the core to build it, the core would have killed it - not out of malice, but out of metrics.
So IBM created a 12-person cell, 1,200 miles from HQ, with its own P&L and permission to violate IBM norms: off-the-shelf Intel CPU, Microsoft operating system, open architecture, retail distribution, no IBM blue-suits.
The PC shipped in 15 months. Then its operating model was grafted back into the company.
Not every company climbs the same ladder. There are three shapes - determined by size and legacy - and each needs a different playbook, timeline and partner.
Size is a proxy for legacy load. Regulated industries (banking, insurance, health, public sector) carry more drag per head than unregulated (tech, media, services). The picker reads both.
| Company size | Light legacytech, media, services | Medium legacyretail, manufacturing, logistics | Heavy legacybanking, insurance, health, public |
|---|---|---|---|
| Smallunder 2,000 | 01 - LEAP | 01 - LEAP | 02 - SEED |
| Mid-market2,000 - 20,000 | 02 - SEED | 02 - SEED | 02 / 03 hybrid |
| Large20,000 - 100,000 | 02 / 03 hybrid | 03 - GRAFT | 03 - GRAFT |
| Giantover 100,000 | 03 - GRAFT | 03 - GRAFT | 03 - GRAFT (federated) |
Each function has different data readiness, regulatory weight, and AI impact potential. The sequence matters.
GRAFT does not happen all at once. The enterprise transforms in waves.
The number of cells depends on company size. Each cell is dedicated to one or more functions.
For SEED and GRAFT, the enterprise runs two speeds at once: an AI-native cell that builds the future, and a core programme that lifts the rest.
Cells and core programmes need different DNA. Strategy boutiques build cells fast. Big 4 and integrators run enterprise programmes at scale. Don't mix them up.
The cells that succeed all answer these four questions the same way. The ones that become a museum of pilots answer them the other way.
A 60-minute session with TALENT on demand. We read your size, your legacy load, your constraints - and give you the shape that fits.
