A couple of weeks ago I was invited to a lovely dinner at a friend's house here in the heart of Manhattan. Insightful conversation and delicious food made the evening a very pleasant one. The stories shared by the people who were there left a few "aha" moments for me to reflect on.

I’ve been thinking a lot about these stories lately. One in particular captured my attention since it is directly related to the work I do as an organizational culture advisor and leader of a global nonprofit.

A senior leader I met at the dinner was hired into a global role with a European pharmaceutical company (located in central Germany). Highly experienced. Strong track record. Brought in to lead at a global level. This leader had worked most of his career in US-driven environments, with the cultural patterns and guidelines characteristics of American businesses.

During the hiring process, everything felt aligned.

This man shared with me that the conversations were warm, professional, and in English. Dinners with future colleagues were polite, engaging and even welcoming. There was a sense of openness, ease, and mutual respect.

And then… day one.

Without warning, the environment shifted.

Colleagues who had been informal and friendly became distant. First names turned into formal titles and surnames. Conversations moved into German, even in meetings where alignment was critical.

Nothing explicitly negative happened. No one said anything was wrong.

But everything felt different.

What had been welcoming now felt closed. What had been clear now felt uncertain.

And here’s the part that matters:

From the organization’s perspective, nothing had changed. From his perspective, everything had.

This is where most global onboarding strategies fall short.

We assume that if someone is senior enough, experienced enough, “global” enough they will just figure it out.

But integration is not about capability. It’s about shared understanding.

• What does “professional” look like here?

• How is respect shown?

• When is informality appropriate and when is it not?

• What language signals inclusion vs. exclusion?

These are not small details.

They shape:

• How quickly someone speaks up

• How confidently they make decisions

• How much they trust the system they’ve just entered

And ultimately how fast and effectively they perform.

When cultural expectations are left unspoken, onboarding becomes a guessing game and even the most capable leaders can start from a place of hesitation instead of clarity. Not because they lack experience. But because they are navigating a system no one explained.

What would have made a difference?

Not more information. Not another onboarding checklist.

But a shared foundation.

• Preparing leaders to recognize how culture shapes communication, authority, and trust

• Equipping new hires to interpret behaviors that are not explicitly explained

• Making expectations visible on both sides

This is where cultural intelligence becomes practical.

Not as a theory, but as an essential layer of onboarding. A layer of onboarding that accelerates integration, reduces friction, and allows people to lead with clarity from the start.

If you look closely, onboarding (both local and global) is often treated as a process. But in reality, it is a cultural transition. Without cultural intelligence built into that transition, organizations risk slowing down the very leaders they worked so hard to hire.