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Leadership

This much I know: The dos and don’ts of a new CEO

Published September 9, 2025 in Leadership • 3 min read

Becoming the leader of a successful organization requires profound shifts in mindset and behavior. Kevin O’Brien, CEO of Gammon Construction, shares lessons for first-time CEOs.

The Don’ts

  • Don’t come with a pre-prepared game plan – you’ll probably fail.
  • Don’t act too quickly – listen, observe, learn, and then plan.
  • Don’t stop those resistant to change from leaving.
  • Don’t cling to your previous role – let go of things you used to do or tasks that can be done by others.
  • Don’t overshadow your successor – you will lose effectiveness within the organization.
  • Don’t accept mediocrity or settle for gains only at the level of inflation.
  • Don’t become embedded with the leadership team – engage shareholders by building a rapport and driving results.
  • Don’t do everything at the same time – change things incrementally.
  • Focus initially on head office rather than the operational side…
  • … but don’t become distant from the operational side of the business.

 

The Dos

  • Do recognize that all eyes are on your moves, actions, words, and behaviors.
  • Do understand that allyship is more difficult to build in the boardroom as CEO than as a peer director.
  • Do take the organization’s pulse before making big moves by talking to the leadership team.
  • Do use evidence and data to understand the key issues or challenges – and hold decision-makers to account.
  • Do identify the true potential of the business and plan how to unlock it.
  • Do empower whoever is stepping into your shoes to do the job properly.
  • Do respect the past – but focus on what’s happening today.
  • Do craft your own leadership story – create a narrative for change and a clear plan for transformation.
  • Do bring everyone on board with the journey – all the way to the shop floor.
  • Do use data to highlight underperformance, even when the results already look strong.

 

Key takeaways

Becoming CEO presents unique challenges. Start by listening and learning, marshal the data to spot the opportunities, figure out how to unlock future potential, and bring everyone with you on the journey.

Authors

Ric Roi

Richard Roi

Affiliate Professor of Leadership and Organization at IMD

Ric Roi is Affiliate Professor of Leadership and Organization at IMD. He is a senior business psychologist and advises boards and CEOs on matters related to board renewal, CEO succession, top team effectiveness and leadership transitions.

Expert

Kevin O’Brien

CEO, Gammon Construction

Kevin O’Brien is the Chief Executive Officer of Gammon Construction, a leading construction and engineering services company headquartered in Hong Kong. With over 25 years of experience in the industry, Kevin brings deep expertise in project management, strategic planning, and sustainable development. Since taking the helm at Gammon, he has championed innovation, digital transformation, and a strong safety-first culture across the organization. Kevin is known for his ability to lead complex projects, foster collaboration, and drive long-term value in a fast-evolving sector.

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