Commercial Architecture 5 min read May 2026

The Solid
Foundation Rule

Why fixing the wrong layer first makes everything worse — and how to identify which layer to fix first.

Written by
Tom Wood
Fractional Commercial Director / Addoli

Tom built, merged, and exited a compliance consultancy. He now diagnoses the proposition problems costing founder-led businesses deals before the conversation starts.

There is a pattern I see in almost every founder-led business I work with. They know something is wrong commercially. They can feel it. And so they fix something.

They hire a marketing agency. They build a new website. They bring in a sales person. They start posting on LinkedIn. They write a case study.

Six months later, nothing has changed. The pipeline is still unpredictable. Deals still take too long. Price still comes up. And now they have spent money on top of it.

The problem is not that they did the wrong things. Most of the things they tried are good things. The problem is that they did them in the wrong order.

This is what the Solid Foundation Rule describes.

What the Solid Foundation Rule is

The Commercial Architecture Score assesses seven layers of a firm's commercial infrastructure. Think of them as floors in a building. Layer 1 is the foundation. Layer 7 is the roof.

The Solid Foundation Rule states: your lowest-scoring layer is your priority constraint, regardless of your total score. It does not matter how strong your upper layers are. A weak foundation limits everything built above it.

Fix the foundation before adding more content, services, or sales activity.

This sounds obvious when you say it out loud. In practice, almost nobody does it.

Why founders fix the wrong layer first

There are three reasons this happens consistently.

The visible layers feel more urgent. A bad website is embarrassing. A thin LinkedIn presence feels like a competitive disadvantage. These are Layer 6 and Layer 7 problems — they live at the top of the architecture. They are visible. They feel fixable. So they get fixed first.

Meanwhile, Layer 1 — the Foundation — is invisible. Nobody can see that your proposition is not issue-led, that you have no named methodology, that your buyer is not specifically defined. It just manifests as friction that is hard to name. Deals that feel slow. Proposals that go quiet. Price pressure that should not be there.

The lower layers require harder decisions. Fixing Layer 1 means deciding who you are for, what problem you own, and what your named method is. These are not comfortable decisions. They feel like narrowing. They feel like risk. Fixing Layer 6 means writing a LinkedIn post. That is easier.

The activity of fixing upper layers feels like progress. A new website launches. There is momentum. There is something to show. The fact that it carries the same broken proposition as the old website is not immediately obvious.

Every investment in an upper layer before fixing the lowest layer is structurally inefficient.

What happens when you fix layers out of sequence

Here is a concrete example. A consulting firm has a Layer 1 problem. The proposition is capability-led, not issue-led. The buyer is not specifically defined. There is no named method.

They know their proof is thin, so they invest in Layer 6. They start publishing content. They write articles. They post case studies on LinkedIn.

The content goes out. Some of it performs well. People engage. But the inbound it generates is the wrong kind — it attracts people who are vaguely interested in the topic, not people who are in the specific buying situation the firm should own. The content is amplifying a broken foundation.

After six months of publishing, the pipeline has not improved. The firm concludes that content marketing does not work for their type of business. The actual conclusion should be: content marketing amplified the wrong message.

A pricing page built on top of an undifferentiated proposition just makes the comparison easier for the buyer. A sales person hired to pitch a proposition nobody recognises will underperform and leave. A case study written about a project that was not sold well to begin with will not generate belief.

How to apply the Solid Foundation Rule

The application is straightforward once you know the score.

Run the Commercial Architecture Score. Find the lowest-scoring layer. That layer is your current priority — regardless of everything else. Do not work on any other layer until the lowest layer has moved.

The most common constraint across the businesses I have worked with is Layer 1. The Foundation. Eight out of ten firms I have diagnosed have a Layer 1 score of 2 or below.

The second most common constraint is Layer 6. Public Proof. Expertise described, not demonstrated. If both are weak, fix Layer 1 first. A Layer 6 asset built on a strong Layer 1 is a piece of thought leadership that demonstrates exactly the kind of expertise the right buyer is looking for. The same asset built on a weak Layer 1 is a well-written article that attracts no one in particular.

The diagnostic question to ask yourself

Before your next commercial investment — whether it is a website, a content programme, a sales hire, or a campaign — ask one question:

What is my lowest-scoring Commercial Architecture layer?

If you cannot answer that question, you do not yet have the information you need to make the investment decision. The free Proposition Architect diagnostic answers it in five minutes.

The sequence matters more than the effort

I have seen businesses with strong foundations and thin upper layers consistently outperform businesses with impressive upper layers and weak foundations. The ones with strong foundations win deals they should win. The ones with weak foundations work twice as hard for the same or worse results.

The sequence is not glamorous. Fixing Layer 1 does not produce an immediate visible output. It does not launch. It does not trend. It just makes everything above it work properly. Which is the whole point.

Find your lowest layer

The free diagnostic scores all seven Commercial Architecture layers and identifies your priority constraint. 5 minutes. Instant result.

Take free diagnostic →
Related reading
Free Diagnostic
Find your lowest layer.
Fix it first.

The free diagnostic scores all seven Commercial Architecture layers and tells you exactly where to start. 5 minutes. Instant result.

Take the free diagnostic →