The Cost of Assumption at Work

Have you really noticed how quickly we create a story when we do not have all the information.

Think about it, someone does not respond to an email, so we assume they are ignoring us.

Someone is quiet in a meeting, we assume they are disengaged. Someone questions a decision, we assume they are being difficult. Someone misses a deadline, we assume they do not care.

It happens all the time.

The interesting thing is that we rarely describe these thoughts as assumptions. We begin treating them as facts, and that is where the problem starts.

An assumption can change our tone, our behaviour and the way we approach the next conversation. The other person then notices that change and responds to it. That wonderful Botari box model in full play.

Before long, a relationship can begin to deteriorate because of something that may never have been true in the first place.

Assumptions can be expensive. Not simply in terms of money, but in trust, confidence, performance and workplace relationships.

In This Article You Will Learn

In this article, we will explore why people make assumptions at work, how those assumptions affect communication and performance, and why curiosity, listening and better conversations are essential leadership and management skills.

Why Do We Make Assumptions?

If you follow my blogs, you will know I have mentioned the simple point that our brains do not like gaps.

When we do not know the full story, we tend to complete it ourselves. We use previous experience, beliefs, confidence, personality and whatever information we have available.

Sometimes this is useful, we could not stop and investigate every small decision we make throughout the day. The challenge is that assumptions become dangerous when they involve people.

People are complicated, really complicated.

Their behaviour may be influenced by pressure, fear, confidence, health, workload, family circumstances, previous experiences or something happening in the organisation that we know nothing about.

Yet we often take one behaviour and decide we understand the whole person. That is a huge leap.

I have seen this in leadership development, coaching, training and across many different sectors.

A manager says:

“They just do not care.”

My immediate thought is often:

“How do you know?”

There may be evidence.

There may also be a story that has never been checked. That is why you need coaching skills whenever you are responsible for people. See here for our coaching services.

Assumptions Quickly Become Labels

One of the biggest risks of assumption is how quickly it becomes a label. Someone misses a deadline, they become unreliable.

Someone becomes emotional, they become difficult. Someone asks lots of questions, they become negative. They may just be looking for more specifics, how their brain works.

Once a label has been created, we begin looking for evidence that supports it, we move into Confirmation Bias.

We notice every late response from the unreliable person, we notice every challenge from the difficult person.

We notice every quiet moment from the disengaged person, what we may not notice is all the evidence that does not fit the label.

This is one of the reasons assumptions are so difficult to change.

We start interpreting future behaviour through a conclusion we have already made. This is very hard not to do.

The Impact on Workplace Relationships

Relationships are built through small interactions, anyone who has been on any of our training we talk about this a lot. Whether it is train the trainer or leadership & management training, these are transferable skills. Look here at our train the trainer.

Tone, Body language, Trust, Consistency, Listening.

The feeling that someone is being fair, assumptions affect all of these.

Imagine a manager believes someone is not committed. The manager may become colder, give fewer opportunities or speak to that person with less patience.

The employee notices the change but does not understand why it has happened. They may then withdraw, stop contributing or begin looking for another role.

The manager sees that withdrawal and thinks:

“I knew they were not committed.”

The assumption has almost created the behaviour it predicted.

This can happen very easily.

It is also why relationships in organisations can deteriorate without one major event. Sometimes it is a collection of unchecked assumptions building over time.

Silence Does Not Always Mean Agreement

This is one of the assumptions I see regularly.

A leader explains a new process or organisational change, nobody challenges it?

The leader assumes everyone understands and agrees, but the reality may be completely different.

Some people may not feel confident enough to speak, then others may need time to process what they have heard.

Some may be unsure whether questions are genuinely welcome, others may have learned from experience that challenging decisions makes little difference.

Silence can mean agreement, but it can also mean confusion, fear, frustration, uncertainty or simply needing time.

This is why leaders and managers need to check understanding rather than assume it.

Asking:

“Does everyone understand?”

will normally produce a few nods.

Asking:

“What questions or concerns do you have about this?”

creates a very different conversation.

How you question is so important, again we focus on this on all our training and it is especially needed for managers, look here at our management and leadership training.

Poor Performance Is Not Always a Poor Attitude

Another common assumption is that poor performance automatically means someone has a poor attitude, sometimes it does.

Standards matter and people must be accountable for their responsibilities, however, performance problems can have many causes.

The employee may not understand what good performance looks like; they may not have received the right training. For me induction training in any organisation should not be over looked, sadly it is not really thought about as so important.

They may lack confidence, they may be overloaded, they may have conflicting priorities.

They may be trying very hard but using the wrong approach. They may have a manager who believes instructions were clear when they were not.

Before deciding that someone does not care, it is worth exploring what is actually happening.

That does not remove accountability, it makes accountability fairer and far more effective.

A manager cannot choose the right response until they understand the real problem from their perspective.

You would not normally use the same solution for a lack of skill, a lack of confidence and a lack of motivation. Yet assumptions often make managers do exactly that.

Assumption and Organisational Culture

Assumptions do not only exist between individuals, but they can also become part of an organisational culture.

Leaders may assume employees are resistant to change, employees may assume leaders are not listening.

Managers may assume senior leaders do not understand operational reality, senior leaders may assume managers are not taking responsibility.

Departments begin creating stories about one another.

“The training team never supports us.”

“Operations always resist everything.”

“HR does not understand the business.”

“The managers never communicate properly.”

Some of these statements may contain an element of truth.The danger is when they become fixed beliefs rather than issues that can be discussed.

Once assumptions become cultural, collaboration becomes much harder. People stop asking questions because they believe they already know the answer.

Curiosity Is the Alternative

The alternative to assumption is not endless questioning.

It is being curious.

Curiosity creates a pause between seeing a behaviour and deciding what it means.

Instead of thinking:

“They do not care.”

A curious manager might ask:

“What is getting in the way?”

Instead of thinking:

“They are being negative.”

A curious leader might ask:

“What concern are they trying to express?”

Instead of thinking:

“They lack confidence.”

A trainer might ask:

“What would help them contribute?”

Curiosity does not mean being soft. It does not mean avoiding standards or difficult conversations. It means making sure the conversation is based on evidence rather than a story.

That is a much stronger position for any leader or manager.

Ask Rather Than Guess

One of the simplest ways to reduce workplace assumptions is to ask.

Not accuse or interrogate, just Ask.

“I noticed the deadline was missed. What happened?”

“You seemed quieter than usual in the meeting. Is everything okay?”

“I may have misunderstood your reaction. How did you see it?”

“What support do you need to move this forward?”

These are not complicated coaching questions. They simply create space for the other person to explain. The answer may confirm the original concern.

It may also reveal something completely different.

Either way, the manager now has better information.

Check What You Think You Know

A useful discipline for leaders, managers, trainers and coaches is to separate three things:

What do I know? What have I observed? What am I assuming?

For example:

“I know the report was submitted two days late.”

That is a fact.

“I observed that the employee was quiet in the meeting.”

That is an observation.

“They no longer care about their work.”

That is an assumption.

The distinction sounds simple, but it can completely change how we approach a conversation.

Facts give us a starting point. Assumptions often give us a conclusion before the conversation has even begun.

The Commercial Cost of Assumptions

There is also a clear business impact.

Unchecked assumptions can lead to:

Poor decisions, Damaged relationships, Reduced trust, Lower employee engagement, Avoidable conflict, Poor performance management, Increased employee turnover.

Training that does not address the real need. Leaders sometimes look for complex solutions to these problems.

Yet the starting point may be very simple.

Have we taken time to understand what is actually happening? The cost of one misunderstanding may appear small. The cost of hundreds of assumptions across an organisation can be enormous.

Coaching skills work.

Frequently Asked Questions

Why are assumptions harmful in the workplace?

Assumptions can damage communication, trust and workplace relationships because people begin acting on beliefs that may not be accurate.

How do assumptions affect leadership?

Leadership assumptions can result in poor decisions, unfair judgements, ineffective performance management and employees feeling misunderstood or undervalued.

How can managers stop making assumptions?

Managers can reduce assumptions by asking questions, checking evidence, listening carefully, separating facts from interpretations and remaining curious about behaviour.

What is the difference between an observation and an assumption?

An observation describes what was seen or heard. An assumption is the meaning we attach to that behaviour without necessarily checking whether it is accurate.

Can assumptions cause workplace conflict?

Yes. Assumptions often change tone and behaviour, which can create misunderstandings, defensiveness and conflict between employees and managers.

How does coaching help managers avoid assumptions?

Coaching develops curiosity, listening, questioning and self-awareness. These skills help managers explore situations before reaching conclusions.

Final Thoughts

We all make assumptions; it is part of being human.

The problem is not having the first thought; the problem is failing to question it.

Assumptions become dangerous when we treat them as evidence, attach labels to people and allow them to shape relationships. The strongest leaders I know do not ignore their instincts.

They simply remain curious enough to check them, they ask rather than guess, they listen before deciding.

They understand that behaviour may provide useful information, but it rarely tells the whole story.

Perhaps one of the most valuable questions we can ask ourselves is:

“What do I actually know, and what have I assumed?”

That one question could save a difficult conversation, a working relationship and, in some cases, a very good employee.

This is the third article in our Understanding People series, exploring the human skills behind effective leadership, management, coaching, training and workplace performance.

The next article will explore: Why Curiosity Changes Everything.

For more information on our Leadership and Management programmes, Coaching Services or Train the Trainer courses, contact Target Training Associates on 0800 302 9344 or visit our website.