The one signal method: how we decode a Monday episode

The one signal method is the format behind every Marketing Mondays episode: pick one real market signal, such as a competitor's play, a shift in what audiences want or a winning campaign, decode why it matters in minutes, and finish with one clear takeaway. It trades the comfort of more data for the discipline of one decision.

People sometimes ask why our YouTube episodes are so short, and why they never cover "the top ten trends". The answer is deliberate. Marketers are not short of information. They are short of signal they trust and time to act on it. This piece explains how we build an episode, so you can run the same method inside your own team.

What counts as a signal?

A signal is an observable change in the market that should affect a decision. Not an opinion, a prediction or a hot take. We look for three kinds.

• A competitor's play: a new offer, positioning shift, launch or creative approach that is getting real response.
• A shift in what audiences want: a tension, frustration or desire that is appearing more often in real conversations.
• A winning campaign: work that is clearly connecting, with evidence of why.

Noise, by contrast, is anything that is loud but would not change what you do on Monday afternoon.

How do we choose one signal from thousands?

The data engine behind every episode is SOMIN, an AI audience-research platform and the founding partner of Marketing Mondays. It reads large volumes of real posts, ads and comments and organises them into themes, tensions and moments. That gives us a long list. The human work is cutting it down to one, using four filters.

1. Is it real? Can we point to the posts or ads behind it?
2. Is it growing? Is it appearing more, not just appearing?
3. Is it relevant to many marketers? Would a founder, an agency planner and an in-house brand lead all care?
4. Is there a clear action? If the takeaway is "keep an eye on it", we pass.

How is an episode structured?

The signal (about 30 seconds)

What happened, stated plainly, with evidence.

The decode (two to four minutes)

Why it is happening. Which audience tension it connects to. Who benefits and who is exposed.

The takeaway (30 seconds)

One thing to do this week. Specific enough that you could put it in a task list.

That structure is how the show earns its tagline: a weekly shot of marketing intelligence, decoded and made actionable every Monday, for marketers, founders and agency teams.

How can you run the method in your own team?

You do not need a studio. You need a slot, an owner and a source of evidence.

• Book 20 minutes every Monday morning.
• Rotate a signal owner each week so everyone builds the muscle.
• The owner brings one signal with evidence attached.
• The team decodes it together using the three-part structure.
• End with one action, one owner, one deadline.
• Review last week's action before starting the new one.

Evidence can come from social listening, your sales team, search data or an audience-research tool. SOMIN's brand workspace is built for this kind of weekly review, and the SM Universe case study shows how a brand used continuous audience signal to steer its content.

Why one signal and not five?

Because decisions are scarce, not data. A team that acts on one well-understood signal every week makes 52 good decisions a year. A team that reviews twenty signals every week usually makes very few, because nothing gets enough attention to become an action. One signal also makes it easier to speak with confidence. You know it well enough to defend it.

What does a decoded signal look like?

A recent example: we noticed marketers increasingly asking how to evaluate agencies on something other than reach and ROAS. The decode linked it to a wider tension about vanity metrics and the hidden costs of advertising. The takeaway: add one profit-based measure to your next agency review. We went deeper in vanity metrics: the numbers that make you feel good.

Signals often cross over with the work of our sister brands. When a signal is about paid-media efficiency, the people at Trafix usually have a view. When it is about listening and early warning, Somonitor does.

What are the common mistakes?

Teams adopting the method tend to stumble in the same places. The first is choosing a signal because it is interesting rather than useful; if nobody can name a decision it affects, drop it. The second is skipping the evidence and arriving with a hunch. The third is ending with a vague action such as "think about our Gen Z strategy", which never gets done. The last is skipping the review of last week's action, which quietly turns the ritual into a talking shop. Fix those four and the method holds up in almost any team size.

Definitions

• Signal: an observable market change that should affect a decision.
• Noise: information that is loud but would not change what you do.
• Decode: the explanation of why a signal is happening and who it affects.
• Takeaway: one specific action with an owner and a deadline.

Where to watch and join

Episodes go out on YouTube at @marketing-mondays, brought to you by SOMIN. Discussion carries on in the LinkedIn "Marketing Mondays Group" and the WhatsApp community "Marketing Mondays @ Block71", where members share signals they have spotted and test their decodes with peers. To join, email ask@mondays.marketing.

One real signal, decoded and made actionable. Not opinions. Not ten trends. One thing you can use today.

Frequently asked questions

What is the Marketing Mondays one signal format?

Each episode picks one real market signal, decodes why it matters in a few minutes using real competitor and audience evidence, and ends with a single clear takeaway.

Where does Marketing Mondays get its signals?

Signals are researched with SOMIN, an AI audience-research platform and the show's founding partner, which reads real posts, ads and comments. Hosts then filter them down to one.

Can I run the one signal method in my own team?

Yes. Book 20 minutes each Monday, rotate a signal owner, bring evidence, decode it together and end with one action, one owner and one deadline.