The debate around in-house marketing usually comes down to cost. Internal teams are cheaper than agencies, retainers can be cut. That's sometimes true. As a strategic argument, it's weak – and anyone who makes that case is building on the wrong foundation.

The better question: which competencies drive our daily value creation – and can we afford not to own them ourselves?

Over the past few years, I've built performance marketing, social media management, content and culture marketing in-house. Not to save money. These functions work at the core of the brand every single day, and outsourcing them permanently means giving up competency gradually. You often don't notice until an agency contract ends. Then it's clear: the knowledge walked out with them.

An agency that works with a brand for years accumulates context: what worked in which markets. What tone the brand can carry. Which messages land, which don't. That's institutional knowledge sitting outside the organization. No briefing document gets it back.

I learned this in artist management, and it applies to brand leadership in exactly the same way: nobody knows a brand as well as the people who work with it every day. Brand leadership requires decisions that can only be made with the full picture – strategy, internal dynamics, market conditions, the brand's history. That can't be handed over. Not even to the best agency.

Where's the line?

I ask three things about every function:

  1. Is it a core daily competency?
  2. Does it require breadth from different contexts – other industries, other countries, other customer situations?
  3. And is it a permanent need or project-based?

Creative agency work stays external for me, because good creativity needs outside perspective. A team that only ever works with one brand eventually loses that.

The result isn't a fully internalized marketing organization. It's a division of work where I know why I draw the line where I do: what works at the brand's core every day and builds institutional knowledge belongs in-house. The rest doesn't have to.

Whether a company has this right becomes clear the moment the agency changes.