Kevin O'Leary Says This Is the One Skill He Looks For in a Leader — But It's 'Almost Impossible to Find' The "Shark Tank" star spoke with Entrepreneur about the launch of his new advertising agency, WonderAds.

By Emily Rella Edited by Melissa Malamut

Key Takeaways

  • Kevin O'Leary says he looks for leaders with "execution skills" but it's a challenge to find.
  • Ideas are a "dime a dozen," O'Leary says.
  • The "Shark Tank" star recently launched a new television advertising company for small businesses.

Opinions expressed by Entrepreneur contributors are their own.

"Shark Tank" star Kevin O'Leary's new company, WonderAds, wants to disrupt the industry by making television advertising accessible to small businesses.

But when launching a new business, ensuring the company has an "effective" leader is one of the most important decisions a business owner will make, O'Leary says.

Related: Kevin O'Leary Launches AI TV Advertising Platform, WonderAds

"The difference between effective managers and ineffective managers is very simple," O'Leary tells Entrepreneur. "It's the ability to focus and determine the signal versus the noise. Whatever the business plan looks like today, particularly on a startup, I guarantee you, it won't be what it looks like in 24 months."

O'Leary says the ability to execute is paramount — and hard to find.

"Ideas are a dime a dozen," O'Leary said. "[But] execution skills are almost impossible to find. When you find executional skills, you can put that person into almost any business and achieve success."

O'Leary says top execution skills include being able to pivot, focus, and listen. He also stressed that the ability to waive off naysayers and negative opinions is an important part of being a leader.

"The naysayers, they don't matter," he says. "They're completely irrelevant."

Related: Kevin O'Leary: Job Hopping Can Be a Resume 'Huge Red Flag'

Want to work for O'Leary? Get some thick skin. True leaders don't care what you think about them, he says.

"If you're a manager, and you're concerned about what people are saying about you, think about you, or feel about you, you're completely wasting your time, you will never make everybody happy," O'Leary says. "It doesn't matter to me whether you like me or you don't like me, I don't care."

Emily Rella

Senior News Writer

Emily Rella is a Senior News Writer at Entrepreneur.com. Previously, she was an editor at Verizon Media. Her coverage spans features, business, lifestyle, tech, entertainment, and lifestyle. She is a 2015 graduate of Boston College and a Ridgefield, CT native. Find her on Twitter at @EmilyKRella.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Side Hustle

This Couple Started a Side Hustle to Improve a 'Terribly Made' Bathroom Essential. Now the Business Earns More Than $3 Million a Year.

Michael Fine and Lisa Schulner-Fine launched lifestyle brand Quiet Town in 2016 and have been growing it ever since.

Leadership

Lead From the Top: 5 Core Responsibilities of a CEO

Knowing exactly what the chief executive's role entails is critical for steering a company to success.

Marketing

If You're Using ChatGPT This Way as a Marketer, You're Missing Out on Its Full Potential. Here's How to Maximize Your Results.

The real value of AI isn't in what you ask — it's in how you shape the conversation. Mastering prompt interactions means better content, sharper thinking and fewer generic outputs.

Business Ideas

70 Small Business Ideas to Start in 2025

We put together a list of the best, most profitable small business ideas for entrepreneurs to pursue in 2025.

Marketing

Why Micro-Influencers Are Winning the Trust Game in Marketing

Here's how micro-influencers are driving authentic brand engagement and redefining trust in digital marketing.

Growing a Business

Founders Are Missing This One Investment — But It Could Be the Most Profitable One You Make

When founders are empowered with support, grounded in their vision and guided along their path, everything flourishes.