A team where people are afraid to say "I don't know" or "I made a mistake" works more slowly and gets things wrong more often. The problem is not a lack of competence. Mistakes simply come to light too late. In 2026, managers are leading their teams through AI adoption, constant change and hybrid work. In these conditions, psychological safety is no longer a nice extra. It becomes the condition for a team to learn at all.
The most important tool a manager uses to build it is their own emotional intelligence. It determines how they react to bad news, a difficult question or a failed project. The team draws conclusions from this very quickly.
What psychological safety is
Psychological safety is a belief shared by team members that the team is safe for interpersonal risk-taking. This is how Amy Edmondson of Harvard Business School defined it in a 1999 article in Administrative Science Quarterly (source). In practice, it means I can ask a question, admit a mistake or raise a concern, and nobody will ridicule or punish me for it.
The strongest evidence comes from Google. In Project Aristotle, the company analysed 180 teams: 115 engineering teams and 65 sales teams (Google re:Work). The researchers were looking for the ideal team composition. Instead, they found five features of how people work together. Psychological safety turned out to be the most important of them:
Psychological safety
Dependability: work delivered on time and to a good standard
Structure and clarity of roles, goals and expectations
Meaning of the work for each person
Impact: a sense that the work makes a difference to the company's results
Interestingly, seniority, consensus-driven decisions, team size and sitting in the same office made no significant difference.
What psychological safety is not
It is not about being "nice" or avoiding difficult conversations.
It does not lower the bar or release anyone from accountability for results.
It does not mean everyone agrees. A safe team has more disagreement, because people are not afraid to speak.
It does not replace competence, clear goals or good processes.
Emotional intelligence: what a manager builds safety from
You cannot create psychological safety by announcing "here you can say anything". A team believes what it sees in the boss's behaviour, especially under pressure. As early as 1998, Daniel Goleman wrote in Harvard Business Review that emotional intelligence is a necessary condition of leadership, not an add-on to IQ and expertise (HBR). Each of its five components translates into a specific sense of safety in the team.
Self-awareness. The manager notices they are irritated before they start speaking. The team thinks: "I know what to expect from my boss."
Self-regulation. They respond to bad news with a question, not an outburst. The team thinks: "I can come to them with a problem."
Motivation. They treat a mistake as information to learn from. The team thinks: "It pays to try new things."
Empathy. They see who stays silent and why. The team thinks: "Someone notices how I feel."
Social skill. They argue about ideas, not about people. The team thinks: "I can disagree and nothing bad will happen."
Self-regulation matters most here. A single harsh reaction to bad news can destroy what a manager has built over months. People remember it far longer than any statement about openness.
How to tell that a team lacks safety
A lack of safety rarely shows up as open conflict. It usually looks like silence and apparent agreement. If you recognise three or more of these signals, it is worth taking a closer look:
Nobody asks questions in meetings, and doubts only come up in the corridor or in private chats.
You are the last to hear about problems, usually when they can no longer be hidden.
Your ideas pass without objection, even the weaker ones.
People start sentences with "this is probably a stupid question, but…".
Mistakes are explained away by circumstances or blamed on other departments.
New people stop suggesting changes after a few weeks.
Surveys look fine, while staff turnover and sick leave are rising.
The third signal is the most misleading. A lack of objection is easy to mistake for a good atmosphere. Often, though, it is the silence of people who have decided that speaking up does not pay.
7 manager behaviours that build safety
You can start using each of these at your next team meeting. Each comes with a sentence you can say directly.
1. Admit what you don't know
When the boss says "I don't know", the team gets permission to say it too.
"I don't have a ready answer to this. How do you see it?"
2. Respond to bad news with thanks
Your first words decide whether someone will come to you with a problem next time.
"I'm glad you're telling me now and not in a week. What do we know so far?"
3. Separate the mistake from the person
Talk about what happened and what we are learning, not about who is to blame.
"What in the process made this happen?"
4. Speak last
When the boss opens with their own view, everyone else usually falls in line.
"Before I say what I think, I want to hear from each of you."
5. Invite the quiet ones
Silence does not mean agreement. Give people time or another channel, for example a short note after the meeting.
"Marta, you know this client best. What might not work here?"
6. Ask for feedback about yourself
And show what you did with it. Otherwise the request quickly loses credibility.
"What should I do differently so that it's easier for you to raise problems?"
7. Keep the bar high
Safety without high standards gives you a comfortable team, not an effective one. Be clear about what you expect.
"You may make a mistake. All I expect is that you tell me straight away."
Check yourself: 6 questions for managers
Answer honestly, thinking about the last two weeks rather than how you would like to react.
When did someone on my team last openly disagree with me? How did I react?
How much time passes between a problem appearing and me hearing about it?
Do I talk for more than half the time in meetings?
When did I last admit a mistake in front of my team?
Who on my team hardly ever speaks, and do I know why?
How do I behave when I'm under pressure to deliver results? Does my team see a different boss then?
Your answers are only half the picture. The other half comes from your team. That is what our online test "Psychological safety in the team" is for. It is based on Amy Edmondson's 1999 scale. It takes a few minutes to complete, and the result with an interpretation arrives straight away in a PDF report.
Summary
Psychological safety does not come from declarations or from a team-building event once a quarter. It is built in small moments: when someone brings bad news, asks an awkward question or disagrees with the boss. In those moments, the manager's emotional intelligence decides whether the team will speak up next time.
At NESSE, we work on this with managers in leadership, emotional intelligence and communication training, and in one-to-one coaching. If you would like to see how this looks in your team, write to us: koordynatorzy@nesse.pl.
Sources
Edmondson A. (1999), Psychological Safety and Learning Behavior in Work Teams, Administrative Science Quarterly – overview of the model
Google re:Work, Guide: Understand team effectiveness (Project Aristotle)
Goleman D., What Makes a Leader?, Harvard Business Review