DISC Blind Spots: The Strength That Promoted You Is the One That Will Stall You

DISC Blind Spots: The Strength That Promoted You Is the One That Will Stall You

In 2011 I lost my company. I had billed 125,000 euros and I ended up waiting tables in a McDonald's, which I decided to call my summer therapy.

The hardest part wasn't the debt. It was a coffee, much later, with someone from that team.

"Did you see it coming?" I asked her. "Of course." "Then why didn't you tell me?" "I did tell you. In March. You said it wasn't the moment to talk about that."

I remembered the sentence the second she said it. I'd said it thinking I was protecting the team's focus. She had heard: don't bring me bad news.

There were five of us. Four could see it. And not one of them said it twice.

That's when I learned what no test had ever explained to me: my greatest strength — deciding fast — was also the reason information stopped reaching me.

The mechanism: it's a wing mirror, not a character flaw

Your blind spot isn't a moral failing. It's geometry.

In a car, the blind spot is the strip the mirror doesn't reach. It isn't there because the glass is dirty or because you're a bad driver. It's there because the mirror, by design, doesn't cover everything. And you don't fix it by staring harder. You fix it by turning your head or asking your passenger.

Your communication style works the same way. The style that got you promoted is the angle you see the world from, and every angle leaves a strip outside the frame. The better a strength works, the more you use it; the more you use it, the less you see of what it hides.

And that strip is getting more expensive. According to the World Economic Forum's Future of Jobs Report 2023 (803 companies, 11.3 million employees), reported by Statista, 53.1% of companies expect leadership and social influence to grow in importance between 2023 and 2027. Translation: you'll increasingly be judged less on what you know and more on what you cause in the room.

Four strips, then. One per DISC dimension: Dominance, Influence, Steadiness, Compliance.

1. Dominance: you decide so fast that people stop bringing you data

Your strength: you cut the knot. Where others circle three times, you decide and execute.

The blind strip: the room learns that talking to you changes nothing, so it stops talking.

It's the most expensive blind spot because it's silent. No conflict, no slammed doors, no complaints. Just very efficient meetings in which nobody contributes anything.

Three observable signals:

• People say "sure, no problem" and then the work arrives late.
• The hard questions reach you by email instead of in the meeting.
• In a thirty-minute meeting you speak for more than half of it and walk out convinced it went well.

An illustrative example (not a real quote — it's the script I watch repeat itself): you say "we launch in Q2, no debate, here's the timeline" and you believe you communicated clarity. What gets heard is: "my opinion is the only one that counts." The result: you lose the experience sitting at that table.

The prescription: after your recommendation, always add the same sentence — "What am I missing?" Then count three seconds of silence before responding to whatever comes back.

The mechanism: three seconds of silence is uncomfortable on purpose. It breaks your reflex of answering before you've understood, and that reflex is exactly what teaches people that starting a sentence with you isn't worth it.

2. Influence: you're so energising that you sound unrigorous

Your strength: you fill the room. You tell stories, you connect, you carry people with you.

The blind strip: energy without numbers reads as no substance. And once that judgement is made, more energy will not undo it.

Three observable signals:

• You're asked for "more detail" in three consecutive presentations.
• Someone in finance always sends a follow-up email with the numbers that were missing.
• Your team adores you and the board rates you lukewarm, and you can't work out how both can be true.

An illustrative example: "It's been a transformational quarter, the team is fired up, imagine where we'll be in six months." You said vision. They heard that you don't know whether you're winning or losing.

The prescription: open with the punchline. Number and decision first; the story comes behind it, as evidence.

The mechanism: in a committee, story before data is processed as a pitch; data before story is processed as a report. Identical material, different order.

3. Steadiness: you protect consensus so carefully that you look indecisive

Your strength: people feel safe around you. Nobody's afraid to tell you what they think, and that is a genuinely rare asset.

The blind strip: consulting without a date reads as not wanting to sign.

Three observable signals:

• Meetings end with "let's keep talking about it" instead of a decision and an owner.
• Your team, who love you, complain about a lack of direction.
• You postpone the hard announcements waiting for a better moment that never arrives.

An illustrative example: "I want everyone to feel heard, let's gather more input and revisit next week." You said respect. They heard that the decision has no owner.

The prescription: separate the two phases out loud, with a date. "I'm collecting input until Thursday. On Friday I decide."

The mechanism: what unsettles a board isn't that you consult, it's not knowing when the consultation ends. A date turns your empathy into method — and method does read as leadership.

"Hang on, Agustín — what if I decide and I'm wrong?"

Then you're wrong. With a date you find out sooner, which is precisely the useful part of being wrong.

4. Compliance: so much rigour it looks like fear

Your strength: you see the flaw nobody else sees. Your work survives any audit.

The blind strip: asking for one more scenario reads as refusing to commit. And the better you argue for the wait, the more it looks that way.

Three observable signals:

• You're asked "what do you recommend?" and you answer with what's still to be analysed.
• You've postponed the same decision twice on incomplete data.
• Your team waits for your sign-off on things that don't need it.

An illustrative example: "Before we decide I need three more scenarios and a stress test; I'll have it in three weeks." You said rigour. They heard that the opportunity is walking out of the door.

The prescription: classify the decision before you analyse it. Jeff Bezos put it to his shareholders in 2016: there are type 1 decisions, irreversible, which deserve all the time in the world, and type 2 decisions, reversible, which should be made fast because they can be undone. Most are type 2.

The mechanism: over-analysing doesn't reduce risk, it delays the moment reality corrects you. And reality corrects for free.

How you see a blind spot (because alone, you can't)

I took a DISC self-assessment years ago and came out high in Dominance. Wonderful: a piece of paper confirming exactly what I already believed about myself. That isn't a diagnosis, it's a mirror with flattering lighting.

Self-report describes who you think you are when you're calm. And your blind spot only shows up in a hurry, under pressure, or with an audience.

Three ways to turn your head, in ascending order of discomfort:

1. Record a meeting. Not to judge yourself — to time how long you speak and count how many open questions you ask.
2. Ask three people one specific question. "At what point in the last meeting did you decide not to tell me something?" works. "How am I doing?" never works.
3. Let a machine count it. Mi.Coach listens to a recording of yours and hands back observable behaviour: how much of the floor you take, how many numbers appear per block, and how many decisions end up with no owner.

And the honesty label: that is not a scientific verdict on your personality. It's a working criterion — mine — built from a lot of hours listening to rooms. Thermometer, not verdict.

Your task today, before ten tonight

Pick three people: someone from your team, a peer, and someone who evaluates you.

Send all three the same message, word for word: "I'm reviewing how I communicate. Can you give me one specific moment in the last two weeks when you decided not to tell me something?"

Three messages. One each. Today.

Tomorrow, count how many come back with a specific moment. If zero, that's your answer and it's the most expensive one. If one, you have work to do. If three, congratulations: you have passengers, and a passenger is the only thing that actually covers a blind spot.

And when they answer, don't defend yourself. Just write: "Thank you. What else?"

Close

You have the strength. You have the track record. You have a team that sees it better than you do.

The only missing piece is turning your head.

Your blind spot isn't a flaw. It's a virtue with no brakes.

The choice is yours and nobody else's. You can spend years convinced your style is your best asset — it is — without ever learning what it's costing you, or you can send three messages tonight and find out within forty-eight hours.

If you'd rather start from behaviour than from opinion, record a meeting on Mi.Coach and see how much of the floor you take.

Ask more. Decide just as fast. And make this a better world.

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Dr. Agustín Rosa Author of Cállate: Los Errores del Orador · Founder of Mi.Coach