Multiplier? Diminisher? Accidental Diminisher?

I have read a lot of leadership books. Most of them get skimmed, nodded at, and shelved. Multipliers by Liz Wiseman is not one of those books. It is the rare read that made me stop mid-sentence and think about specific conversations I have had with my own team, in a way that was honestly a little uncomfortable.

If you manage people, especially a lot of people, you need to read this book.

The Idea That Hooked Me

Wiseman’s core argument is simple, and it hit me hard: every leader is either a Multiplier or a Diminisher. Multipliers make the people around them smarter and more capable. They get close to full capacity out of their teams. Diminishers do the opposite. They shrink the intelligence in the room, usually without even realizing it, and leave real capability sitting on the table.

Running Northern Border Operations with a team of over 120 people, that framing landed differently than it would have earlier in my career. I am not managing a handful of direct reports where I can personally catch every mistake. I am managing a system of people, and the question is not “can I solve this problem myself?” It is “am I building an operation where my team is solving problems better because I am the one leading them?”

That is the real test of leadership at scale, and Multipliers gave me language for it I did not have before.

The Five Disciplines

Wiseman breaks the Multiplier approach into five disciplines, each with its Diminisher counterpart:

Talent Magnet vs. Empire Builder. Multipliers find people’s genius and put it to work. Diminishers hoard talent and keep people underused so they always look like the smartest person in the room.

Liberator vs. Tyrant. Multipliers build an environment where people feel safe enough to think hard and speak up. Diminishers create tension that shuts people down before they even try.

Challenger vs. Know-It-All. Multipliers hand people hard problems and let them stretch into the answer. Diminishers just tell people what to do, which trains a team to stop thinking for itself.

Debate Maker vs. Decision Maker. Multipliers force real debate before a decision gets made, so the team actually understands the reasoning behind it. Diminishers decide alone or with a small inner circle and announce it.

Investor vs. Micromanager. Multipliers give real ownership and hold people accountable to it. Diminishers stay so involved that nothing moves without them, which caps everyone’s growth, including their own.

Reading through these, I could place real moments from my career on both sides of the ledger. That is uncomfortable. It is also exactly why the book works.

The Part That Actually Changed My Thinking

Here is what separates this book from the usual leadership content: the idea of the Accidental Diminisher.

Most Diminishers do not think of themselves that way. Nobody sets out to be a tyrant or a micromanager. Well maybe some do. Accidental Diminishers are well-meaning managers whose habits, jumping in to help, always having the answer, being the fastest thinker in the room, quietly train their team to defer instead of think.

That one hit close to home. Eleven years in this industry, certifications, deep operational knowledge, leadership experience. I am fast. I can usually see the answer before someone finishes explaining the problem. And that speed, if I am not careful, can become the exact thing that keeps my team from developing their own judgment. Being the person with the answer feels like leadership. Sometimes it is actually the opposite.

That is the shift I am working on now. Instead of answering first, ask the question that gets someone else to the answer. Instead of stepping in to fix it, invest in someone’s ability to fix it themselves next time.

Why This Matters For Where I Am Headed

I am pursuing my Licensed Customs Broker credential and building toward a more senior/executive level role. The technical knowledge is table stakes at that level. What actually separates good leaders from great ones at that altitude is whether they multiply the people underneath them or diminish them.

An operation of 120-plus people cannot run on my individual expertise. It has to run on the collective intelligence of the team, and my job is to be the person who unlocks that intelligence instead of the bottleneck it has to pass through.

Multipliers gave me a mirror and a method at the same time. The mirror was not always flattering. The method is one I plan to make a core part of how I lead, starting now, not once I get the next title.

Bottom Line

If you lead people, read this book. Read it slowly enough to actually check yourself against the five disciplines instead of just nodding along. The Accidental Diminisher chapter alone is worth the price of admission.

I am not done processing everything in it. But I already know this book changed how I am going to walk into my next team meeting.