Why Single-Sourcing Can Put Your Business at Risk

Uncomfortable truths are easily avoided. That is, until you run out of cheese. 

Please excuse the “Who Moved My Cheese” reference so early in this article, but we think there’s an uncomfortable truth to acknowledge about supply chains: When everything is working, it's easy to stop looking for what could go wrong.

For many companies, single-sourcing isn't a deliberate strategy, but the unfortunate reality of how businesses evolve. A supplier consistently delivers quality products, pricing remains competitive, and the relationship grows stronger over time. Before long, that supplier becomes the only approved source for a critical raw material. Not necessarily because anyone decided to single-source on purpose, but because there was never an urgent reason to do anything differently.

The past several years have shown just how quickly global supply chains can change. Pandemics, geopolitical conflict, tariffs, transportation disruptions, regulatory changes, natural disasters, and unexpected plant shutdowns have all demonstrated that even the most reliable suppliers can experience challenges beyond their control.

When that happens, companies relying on a single source discover how vulnerable they have become and exactly how painful that vulnerability is.

How Strong Companies Become Single-Sourced

Most experienced sourcing professionals already understand the dangers of relying on one supplier. The problem isn't usually a lack of knowledge, but a lack of resources. Sourcing and procurement teams are frequently among the leanest groups within an organization (despite the abundance of high-fat dairy products, heh). Yet, almost every disruption immediately lands on their desks:

• A raw material becomes unavailable? Sourcing needs to fix it.

• A supplier raises prices? Sourcing needs an alternative.

• A tariff changes the economics of an imported material? Sourcing needs another option.

• A plant shuts down? Sourcing needs product.

Regardless of the demands of the day, Sourcing usually finds a solution. Experienced sourcing professionals are exceptionally good at grinding through problems until production can continue. But constantly solving today's problems leaves fewer resources for preventing tomorrow's.

Lean teams that act as a catch-all for major business disruptions is a breeding ground for complacency (and sometimes contempt, but that’s a different article). Complacency means that companies stop vetting suppliers as frequently or thoroughly as they should. 

Does Supplier Vetting Have an Expiration Date?

Supplier qualification should never be treated as a one-time event. A manufacturer that was thoroughly vetted five years ago isn't necessarily the same manufacturer today. Leadership changes, equipment ages, raw material sources change, production processes evolve, quality systems can strengthen or deteriorate, financial circumstances change, and even the geopolitical environment surrounding a supplier can look completely different.

Paradoxically, successful supplier relationships can force companies to perform less due diligence over time. Because why would Sourcing dedicate valuable resources to vetting a supplier that’s been consistently good for years?

But the importance of properly vetting suppliers hasn't decreased simply because the relationships have gotten older. This is why SC CHEM places so much emphasis on physically visiting manufacturing partners and walking the production lines. Certifications, questionnaires, and technical documentation are important, but they cannot completely replace seeing how a manufacturer actually operates.

A Better Approach: Supplier Diversification

Reducing single-source risk doesn't mean abandoning good suppliers. It doesn't even necessarily mean splitting every purchase evenly between multiple manufacturers. A strong incumbent supplier may continue receiving the majority of the business. The difference is having another qualified supplier ready.

Organizations can identify, vet, qualify, and develop secondary sources while their existing supply chains are functioning normally. In some cases, granting a qualified alternative supplier a minority position helps maintain the commercial relationship and keeps that supply pathway active.

Not all cheese ages…well. When circumstances change, and eventually they will, the company will always be better off if they aren’t starting from zero. 

Building a More Resilient Supply Chain

No company can eliminate every supply chain risk. However, companies can prepare for uncertainty by reducing dependence on a single supplier and building relationships with qualified alternatives before they become necessary.

At SC CHEM, Find. Vet. Source. isn't simply about locating chemicals. It’s also not just a catchy slogan, although we’re very proud of it so far. 

We help companies expand the capabilities of lean internal sourcing teams by identifying alternative suppliers, evaluating their technical and commercial capabilities, physically vetting manufacturing operations, and developing qualified supply options before they're desperately needed. When your cheese moves, we make sure it doesn’t stink. Unless you’re into that sort of thing.