The Myth of the Single Source

The Myth of the Single Source

How Cross-Checking Can Save You from Costly Mistakes

A colleague once sent me a glowing report about a new vendor who could “revolutionize” our workflow. I did not question it. He was smart, seasoned, and confident. Six weeks after signing the contract, the vendor had already missed three deadlines, communication was falling apart, and we were scrambling to undo the mess.

One phone call to a past client could have told me they had been struggling for months. I just did not make it.

We do this more often than we admit. We trust a single news outlet, a single friend, a single expert, a single online review. Sometimes it works out. But when it does not, the cost is almost always higher than we imagined, money, time, reputation, relationships.

The problem is not that the source is lying. No single source has the full picture. Even the most credible voices carry their own blind spots, incentives, and limitations.

Here is how to protect yourself without turning your life into a research project:

  1. Check one layer deeper than you normally would
    If you would usually stop at one article, skim a second from a source with a different perspective. This is not about balancing political bias, it is about catching details the first one left out.
  2. Cross the incentive streams
    An industry insider and a frustrated customer will give you wildly different truths. You need both to see the full shape of reality.
  3. Use friction as a filter
    If you are about to make a big decision and everything you have heard so far sounds too smooth, add a deliberate pause. Search “<product/topic> problems” or “<company> lawsuits.” If you find nothing, you have gained confidence. If you find something, you have saved yourself.
  4. Beware the perfect story
    Real situations are messy. If a source presents a flawless narrative with no contradictions, treat it like a magician’s trick, it is polished because something has been hidden.

Cross-checking is not about distrust. It is about building a 360 degree view instead of staring through one narrow window.

That vendor? Replacing them took months. The delays were expensive, but the lesson was cheap: one extra question, one extra perspective, one extra call, every time.