When Yesterday’s Success Becomes Today’s Blind Spot

Success teaches us many things.

It tells us what worked. 

It gives us experience. 

It builds confidence. 

And when we face a similar situation again, it gives us something valuable to draw upon.

But success can also create a problem we rarely think about.

What worked yesterday may have worked because of circumstances that no longer exist today.

The lesson may still be valuable. The principle behind it may still be sound. But the behaviour, strategy, or decision that produced yesterday’s success may no longer be the most appropriate response. 

This is where experience can quietly become a blind spot.

The danger is not that we learned nothing from the past.

It is that we learned something from the past and applied it too literally to the present.

“But It Worked Before”

Most of us have probably heard some version of this:

“We’ve always done it this way.”

“I’ve been doing this for 20 years.”

“This worked for me before.”

“We tried changing it once. It didn’t work.”

“This is how I built the business.”

There is nothing inherently wrong with any of these statements. 

We acknowledge experience matters.

If you have encountered a situation before, you may know something someone encountering it for the first time doesn't.

An experienced salesperson may recognize that an enthusiastic prospect who repeatedly avoids discussing budget isn’t necessarily as close to buying as they appear.

An experienced manager may notice that a normally vocal employee suddenly becoming quiet in meetings deserves attention.

An experienced entrepreneur may recognize the difference between temporary customer interest and genuine willingness to pay.

A seasoned project manager may recognize the early signs of a project beginning to drift long before the deadline is actually missed.

Experience can help us notice things earlier.

The problem begins when experience moves from being useful information to becoming automatic instruction.

Yesterday tells us what happened yesterday. It shouldn't automatically translate into what we should do today.

The Past Never Returns in the Same Form

Imagine someone who built a successful business 20 years ago.

Perhaps much of the company’s growth came through trade exhibitions, telephone prospecting, distributors, printed brochures, referrals and face-to-face meetings. Those methods worked then.

It would be foolish to dismiss that experience simply because it happened 20 years ago. But it would be equally questionable to conclude: “This is how businesses should grow today.”

The environment surrounding the lesson has changed. 

Customers may now research suppliers before speaking to a salesperson. 

Competitors can appear from anywhere in the world. Information that once required a salesperson to provide can be found within seconds.

LinkedIn, search engines, online communities, video calls, email, messaging platforms and AI have changed how people discover, evaluate and communicate with businesses. So what exactly should we learn from the earlier success?

Perhaps the real lesson wasn’t: Attend exhibitions.

Perhaps it was: Be where your customers are looking.

Perhaps it wasn’t: Cold-call prospects.

Perhaps it was: Find appropriate ways to start conversations with potential customers.

This distinction matters as principles rarely change, but the practices do. And this isn’t limited to business.

A parent might remember being told, “If you don’t know something, go to the library.”

The library was the practice.  The principle was much bigger:

Don’t remain ignorant when information is available. Go and find out.

Today the method of finding out may involve a search engine, an online course, a research database, an expert or an AI assistant. The principle survived. but the practice changed.

Don’t Just Ask What Worked. Ask Why It Worked.

This is one of the most useful questions we can ask when looking backwards.

Why did it work?

Suppose a manager says:

“When I started my career, I made sure I was in the office before my boss every morning. It showed commitment, and it helped me get noticed.”

There may be a valuable lesson in that experience. But what is it?

Is the lesson : Always arrive before your boss? or 

Is it: Make your reliability, contribution, and commitment visible?

Those lead to very different responses in today’s workplace. 

A professional working remotely across several countries may demonstrate commitment through responsiveness, preparation, quality of work, reliability, and contribution rather than by physically appearing at a desk before somebody else.

Or consider a salesperson who built a successful career by making 50 telephone calls every morning. Twenty years later, that person becomes a sales manager and tells every new salesperson:

“Make 50 calls a day. That’s how I became successful.”

Perhaps the deeper lesson was: create enough quality conversations with potential customers to build a healthy pipeline.

Today's buyer behaviour has changed; the most effective way of creating those conversations has also changed. The original behaviour made sense within a particular environment. The underlying principle may travel much further. 

Preserve the principle where it remains relevant. Reconsider the practice.

What Has Changed Since Then?

Whenever experience tells us, “I’ve seen this before,” it can be useful to resist jumping immediately to: “I know what to do.”

Instead, consider what has changed. 

Suppose you are returning to a company you worked for ten years ago. You know the organisation. You know the industry. You understand many of its customers. That experience is valuable.

But ten years later, the leadership may have changed. The strategy may have changed. New competitors may have appeared. The culture may have evolved. Technology may have changed how work gets done. Some of the people who once influenced decisions may no longer be there. Sure, you are returning to the same company, but not necessarily the same circumstances. Before reusing an old lesson, ask:

• What actually made the previous approach work?
• Which conditions are still present?
• Which conditions have changed?
• Am I preserving the principle or merely repeating the behaviour?
• What information do I have today that I didn’t have then?
• What assumptions am I carrying forward?
• What would make this situation materially different?
• Does the old response still fit the reality in front of me?

You don’t need to discard experience. You need to put it back into context.

The Lesson May Survive Even When the Circumstances Do Not

There is good reason to respect experience. 

Our mistakes can teach us.

Our successes can teach us.

Other people’s experiences can teach us.

History can teach us.

But learning from yesterday does not mean living by yesterday’s instructions. Sometimes the most valuable part of an old experience is buried underneath the behaviour that once produced the result.

The sales technique disappears. The importance of understanding the customer survives.

The office changes. The importance of being dependable survives.

The management structure changes. The need for clarity and accountability survives, etc.

That may be the more useful way to carry experience forward.

Don’t simply ask what worked yesterday. Ask what made it work—and whether that still matters today. Because while past experiences can give us valuable lessons, today's decision still deserves to be evaluated on its own terms.

The Savvy Intelligence™ Perspective

This is where the idea connects naturally with Savvy Intelligence™.

Savvy Intelligence™ is concerned with navigating people, situations, and decisions more thoughtfully—perceiving what is happening, interpreting what matters, anticipating likely consequences, and choosing an appropriate response.

Recognizing that circumstances have changed is one thing. 

Knowing what still applies, what needs to be reconsidered, and how to respond appropriately can be much harder in real situations. That is part of what we explore in the Savvy Intelligence program—developing the ability to look beyond assumptions, interpret situations more carefully, evaluate what matters, and make more considered decisions in work, business, and life. 

If you would like to strengthen these capabilities and become more deliberate in how you navigate changing situations, explore the Savvy Intelligence journey and take the next step with Savvy Academy.