The Big Six holding groups' methodologies: half real knowledge, half sales talk

— Inside the 4A Agencies (Part 1)

TL;DR

• WPP, Omnicom, Publicis, IPG, Dentsu, Havas — the underlying logic of all six global holding groups' methodologies isidentical: consumer insight → strategic direction → creative expression → media delivery → performance evaluation. The difference is in the packaging
• Real knowledge: a century-plus of accumulated "observational systems for human decision-making behavior" — from AIDA to Aaker, still standing
• Sales talk: the real function of methodology is togive the person signing the check something to show their boss— what clients are buying isn't the answer, it's reassurance
• The real difference between methodologies lies in "the firm's cultural DNA, talent profile, and client specialty," not in the methodology itself
• For those interested in using AI to replace the advertising industry: what you need to encode isn't the names of methodologies, it's the real knowledge underneath

This is Part 1 of the four-part series "Inside the 4A Agencies" · Series navigation ↓

If you've done marketing in Taiwan or Asia, you've probably heard these names: JWT, Ogilvy, Leo Burnett, BBDO, TBWA, Dentsu. One level up are the Big Six holding groups — WPP, Omnicom, Publicis, IPG, Dentsu, Havas. Add these names to a pitch deck cover and you can add a zero to the budget.

I've been in this business a long time. Let me tell you a few true things.

These six groups handle about 80% of global advertising business. Each has a dozen or two agency brands under its umbrella, and each agency has its own "methodology," each printed in a deck, each given some mystical-sounding name — JWT's T-Plan, Ogilvy's Brand Stewardship, Leo Burnett's Inherent Drama, Saatchi's Lovemarks, TBWA's Disruption, BBDO's The Work, Grey's Brand Character, DDB's ROI of Creativity.

They all sound impressive.

But if you've actually worked inside these firms, or actually run a few cases with these decks, you'll notice one thing:The underlying logic of these methodologies is identical。

Consumer insight → strategic direction → creative expression → media delivery → performance evaluation.

That's it.

The only difference is — some call "consumer insight" Consumer Insight, some call it Human Truth, some call it Inherent Drama, some call it Disruption Vision; some turn "strategic direction" into a triangle, some into a pyramid, some into five interlocking circles. Then in the deck, that diagram takes up an entire page, with the founder's portrait beside it and a Latin epigram underneath.

I'm not saying these methodologies are useless. They are useful — but the "use" they have, and the "use" clients think they have, are two different things.

The real knowledge half

Let's start with the real knowledge.

There's one thing in advertising that is genuinely true —human decision-making patterns haven't changed. From Lewis proposing AIDA in 1898 — nearly 130 years ago — to Rosser Reeves writing Reality in Advertising in 1961, to Ogilvy writing Confessions of an Advertising Man in 1963, those core observations still hold.

People are moved by a distinctive proposition. People remember messages relevant to themselves. People are drawn by stories, driven by fear, captured by identity. In low-involvement decisions, people rely on intuition, on spokespeople, on packaging color; only in high-involvement decisions do they actually compare specs. None of this has changed from the black-and-white TV era to the TikTok era.

So when Ogilvy says "every advertisement is a long-term investment in the brand image," that's still true in 2026. When Ries & Trout say "positioning is not about changing the product, it's about claiming a position in the consumer's mind," that's still true in the TikTok era. When Aaker says brand equity is built on four dimensions — awareness, perceived quality, brand associations, brand loyalty — that framework still holds.

These are real knowledge.

After a century, the real asset the advertising industry has accumulated is this —an empirically tested, operationally applicable observational system for human decision-making behavior. It's not any one agency's proprietary recipe; it's the shared foundational knowledge of the entire industry.

The sales talk half

The sales talk half is the packaging.

What the Big Six do is essentially take this shared foundational knowledge,rename it, repackage it, paint it in their own brand colors, then sell it to clients。

What is Inherent Drama? Translated, it means "find the dramatic tension built into the product itself" — that's how Leo Burnett put it in the 1950s. But break those words apart and how is it fundamentally different from Reeves's USP, Ogilvy's Big Idea, or BBDO's The Work? It isn't. They're all about "finding a powerful, distinctive, emotionally compelling core appeal for consumers."

What is Disruption? TBWA turned it into a three-step model — Convention (industry conventions) → Disruption (the breaking point) → Vision. It sounds structured. But look closely: isn't this just "first see how others do it, then think about how to do it differently, then figure out where you want to go"? In Chinese military strategy this logic is called qi-zheng (orthodox and unorthodox); in Western strategy it's called Differentiation; in startup circles it's called Blue Ocean.

So why still package it as a "methodology"?

Becausewhat clients are buying isn't the answer, it's reassurance。

A listed company's CMO needs to spend NT$8 million on a TVC, NT$30 million on media, and report to the board why they chose this ad and this agency — they can't just say "we chose the option with a Big Idea." That's too light. They have to say "Based on TBWA's three-stage Disruption methodology, we began with Convention analysis, identified a Disruption Point that breaks industry conventions, and ultimately established a Vision Statement…" That has weight.

The real function of methodology is to givethe person signing the check something to show their boss。

Once you see through this logic, the entire 4A system becomes clear. Why are pitch decks so thick? Because thick means weighty. Why does every deck need a methodology diagram? Because that's brand endorsement. Why can big agencies charge three times what a small agency charges for roughly the same work? Because what they're selling isn't creativity — it'sdecision-making insurance backed by the holding group's name。

The real differences between methodologies

But then — are the Big Six really completely indistinguishable?

Not quite.

If you've actually worked inside several, or partnered deeply with several, you'll notice the methodologies do differ in detail, and those differences reflectwhat the firm is genuinely good at。

Ogilvy's methodology is a copywriter's methodology. Its core focus is "long-term accumulation of brand personality" and "advertising as investment in brand assets" — because David Ogilvy himself was a master copywriter, and what he cared about all his life was "will this ad still be remembered ten years from now." So Ogilvy-system agencies genuinely deliver when working with clients that require long-term brand equity accumulation — finance, luxury, corporate image.

Leo Burnett's Inherent Drama is a Chicago, Midwestern methodology. Leo himself rejected the New York, Madison Avenue style of "intellectual-game" advertising; he wanted "resonance with the real life of America's middle class" — which is why the Leo Burnett system could do Marlboro Man, McDonald's, and Kellogg's so well. It excels at mass consumer goods, at moving the broadest and most ordinary audience.

TBWA's Disruption is the methodology of advertising creative Jean-Marie Dru — at its core, French intellectual dialectical thinking. It excels at brands that need to reposition, challenge category leaders, or build counter-mainstream narratives — which is why Apple's 1997 Think Different was TBWA, and Adidas turned to TBWA when it needed to take on Nike.

Dentsu is a Japanese methodology. It particularly excels at cross-media, cross-domain, cross-industry integration — which reflects Japanese society itself being highly integrated and built on long-term relationships. Dentsu wins major clients in Taiwan, Southeast Asia, and China not because its creative work is hotter than Europe's or America's, but because itunderstands the "all-around care" Asian clients want。

So methodological differences are real — but the difference isn't in "the merits of the methodology itself," it's inthe firm's cultural DNA, the type of talent it has accumulated, and the type of clients it serves best。

What this means for you

If you're on the brand side picking an agency,don't be fooled by methodology names。

Look at what kind of cases the agency hasactually done. Look at their portfolio — not for awards, but for "have they handled problems similar to yours." Look at their team, especially the Group Account Director who'll handle your account — that person's résumé and which clients they've previously led matters ten times more than the holding group's name.

If you're in the advertising industry,learn the methodology, but don't treat it as scripture。

What you're learning isn't the diagram, the jargon, the deck — what you're learning is why this firmdeveloped this particular methodology. Why did Ogilvy emphasize brand equity? Because his clients required long-term accumulation. Why did TBWA develop Disruption? Because many of its clients were challenger brands. The methodology is the phenomenon; the client structure and talent structure behind it are the essence.

If you're someone trying to use AI to replace this system — which is what I'm doing now — what you need to encodeisn't the methodologies of the Big Six, it's theunderlying logicthey all share. Then treat the methodologies as optional "perspective modules," letting the system invoke different lenses to analyze problems based on different client contexts.

Methodology is sales talk, but the foundation is real knowledge. Once you extract the real knowledge, the sales talk loses its mystique.

"Inside the 4A Agencies" series

1. [This article] The Big Six holding groups' methodologies: half real knowledge, half sales talk
2. What clients ask for is a Big Idea; what they actually want is to avoid blame
3. This system is being eaten by AI and consultancies — and it has it coming
4. How Satsuma Creative does advertising