Founder & former CEO | Operating advisory and interim leadership

Bigger business. More work.
Slower progress?

The company may be bigger and busier than ever. But decisions take longer, important work loses momentum, and all that effort produces less progress than it should.

The problem is rarely that people are not working hard enough.

More often, the way the company runs has not kept pace with what the business now requires. Ownership is unclear, decisions circle, functions pull in different directions, important initiatives stall, or too much still depends on a few people at the top.

I work independently with founders, boards, and leadership teams to identify what is holding performance back and establish a clearer, more executable way forward.

That can mean a focused operating intervention or a temporary executive mandate where the situation requires direct leadership and implementation – not advice alone.

Thomas Zagler

What I do

I work with founders, boards, and leadership teams when the business is working harder, but progress, execution, or control are no longer improving as they should.

The work starts by identifying what is actually holding performance back. That may be unclear ownership, slow decisions, weak coordination across functions, excessive dependence on the founder, a critical initiative that keeps losing momentum, or technology and AI activity that is producing more motion than measurable business value.

Depending on the situation, I may take on a focused operating intervention or a temporary executive mandate with direct responsibility for implementation. The objective is the same: clearer authority, stronger execution, better operating control, and a business that moves forward with less friction and more leverage.

Notes from Inside Scaling Companies

Short operator notes on the moments where companies work harder, but progress, execution, or control no longer improve as they should.

Each note takes one familiar operating problem and looks at what is usually underneath it: unclear ownership, slow decisions, weak coordination, repeated follow-up, excessive dependence on the founder, or technology and AI activity that produces more motion than measurable business value.

When Visionaries Fail

Why Successful Entrepreneurs Rarely Make Great CEOs and How to Break Through Founder Limits to Unlock Your Company’s True Potential

When Visionaries Fail book cover

The book goes deeper into the founder-to-CEO transition and why the strengths that build a company can later become limits if the operating model does not keep up.

  • Why working harder stops solving problems as teams grow
  • Why founders get pulled back into operations
  • What makes decisions slow down inside growing companies
  • How roles and responsibilities must change as the company grows
  • How founders keep control without becoming the bottleneck

My background

  • Founder & former CEO with more than three decades building and leading companies across Europe and Asia
  • Founded a business that crossed USD 10M in annual revenue within three years
  • Led companies at 25 people, 150 people, and well beyond 1,000
  • Experienced in rebuilding teams, restructuring operations, stabilizing complex situations, and leading transformation under pressure
  • Now working independently with founders, boards, and leadership teams through focused operating interventions and interim executive mandates

If workload is rising faster than results, let’s look underneath.

A focused outside look can clarify what is holding progress back – whether the issue sits in ownership, decisions, coordination, founder dependence, or a transformation that is not landing – and whether it calls for a focused operating intervention or temporary executive responsibility.