Leadership coaching, inside your organization

Strategy gets translated into execution through your managers. I help close the gap between the two.

Portrait of Erwin Hartenberg

What I solve

Most of what holds an organization back is not a lack of skill in any one manager. It is the dynamic between people: in how a leadership team works together, in how strategy lands once it reaches the people who have to make it come alive, and in tensions between individuals and teams.

In the age of AI, this matters more, not less. When execution speeds up, misalignment compounds faster.

You cannot solve that by coaching one manager in isolation, so I work with several managers in the same organization, long enough to understand what they are up against and to see the patterns none of them can see on their own.

I make the real organizational dynamics visible, and workable.

Diagram: managers in the middle, bridging what is needed and what is here

Why managers in the middle matter

70%

Managers account for at least 70% of the variance in employee engagement across teams.

Gallup, State of the American Manager ↗

28%

Only 28% of executives and middle managers responsible for executing strategy could list three of their company’s strategic priorities.

MIT Sloan Management Review, 2018 (124 organizations) ↗

3 in 4

HR leaders say their managers are overwhelmed by the expansion of their responsibilities. 69% say leaders and managers are not equipped to lead change.

Gartner survey of HR leaders, 2024 ↗

I can help you if you recognize:

  • A gap between the behavior you want to see and how people really work
  • Strategy that seems clear on paper but struggles to get executed as intended
  • AI raising new questions about how work is organized and what the role of the manager is

How I work

Across three levels of the organization at once, so patterns that no single team can see become visible.

01

With the leadership team

I hold up a mirror, honestly and without an agenda: how the leadership team works together, how that lands in the rest of the organization, and where the opportunity lies to change it.

02

With directors and managers

1:1 coaching that helps each director and manager become more effective in their own situation, with their own team, combined with group sessions that build a shared language and practical tools.

03

With teams

Facilitated sessions for teams that need clarity on their objectives and ways of working, or where collaboration across teams needs attention.

“The frameworks he introduced to me made my thinking so much clearer without feeling theoretical. He has an amazing way of asking the right questions to get me to think deep.”

Director, technology company

“I have used Erwin as my safe sounding board, pressure-testing my ideas, strategies, and challenges before I bring them to my leader.”

Director, technology company

Start working with me

Start small. If it works, we go further.

I do my best work in longer, embedded engagements, inside the organization. How deep and how long depends on your organization. This kind of work can only be impactful when there is a fit, on both sides.

So I prefer to start with a workshop or another activity that stands on its own. If it works, we go further from there. If it does not, we both know early.

Background

  • 22.5 years at Microsoft, leadership roles across sales, marketing, services and strategy
  • Trained in Organization and Relationship Systems Coaching (ORSC)
  • Author of Guide Your Team to Success
  • Works in English, German and Dutch

My point of view

I write about the middle of organizations: what the manager's job means today in a rapidly changing world. It is where I work things out in public, and the best place to see how I think.

Get in touch

The first conversation is always exploratory.

I want to understand what your organization is dealing with before proposing anything.