The Portfolio Nobody Designed

Very few people decide to own a garage full of things they no longer use. It happens gradually. A box from the last move stays because there’s nowhere better to put it. An old bike is worth keeping in case someone visits. The broken lamp might be repairable one day. Every decision is reasonable on its own. Ten years later, cleaning the garage feels overwhelming, not because any single decision was wrong, but because hundreds of individually rational decisions quietly accumulated.

Product portfolios evolve much the same way. From the outside, they often look intentional. Products are grouped into business units. Roadmaps are carefully planned. Investment themes are neatly categorized. It is easy to assume someone designed the portfolio to look exactly as it does today. In practice, very few portfolios are ever designed. Most simply accumulate.

Nobody decides to build a portfolio of one hundred products or dozens of overlapping capabilities. One regional team solves a local problem. Another team solves the same problem differently. A strategic customer funds a feature that only they need. An acquisition introduces another platform. A product enters another planning cycle under the same assumptions that justified it the year before. None of these decisions feel like portfolio management in the moment. Collectively, they become the portfolio.

The portfolio is easy to blame because it is the part everyone can see. But the portfolio isn’t the cause of the complexity. It’s the consequence of it. Every overlap, aging product, and fragmented capability reflects a decision that once made sense in a narrower context. Those decisions remain embedded in the portfolio long after that context has disappeared. The portfolio is where an organization’s decision history becomes visible all at once. It isn’t preserving history. It’s carrying the residual effects of past decisions whether anyone understands them or not.

This is why portfolio rationalization so often feels like cleaning out that garage. The difficult part is rarely throwing something away. It is standing in front of each item and asking, “Do I still need this?” Every object has a reason for being there. Every product has a customer, a stakeholder, a revenue stream, or a team attached to it. The portfolio is not difficult to simplify because it was poorly designed. It is difficult to simplify because it was never designed at all.

That observation changes the question. Instead of asking, “How do we rationalize this portfolio?” we should first ask, “How did this portfolio come to look like this in the first place?” Those are very different questions. One focuses on cleaning up the outcome. The other forces us to understand the decisions that produced it.