Don't Say 'I'll Be Careful' | The Secret to High-Performing Teams That Learn from Mistakes

"Teamwork is the key to success"
We hear this phrase often, but what exactly is a "high-performing team"?

When thinking about this, are only the strategies and skills that most people consider important?
Not at all; there are actually deeper elements at play.

Today, I would like to approach the essence of high-performing teams from a different perspective than usual.

This article was inspired by listening to King Kong Akihiro Nishino's Voicy episode, "How to Build a High-Performing Team."

Nishino says that the core of building a "high-performing team" is how the team handles mistakes.

Let's look together at how these approaches influence team results.

1. The reason for not saying "I'll be careful"

The response "I'll be careful" oftenfails to explore the root cause of the problem and remains a temporary fix.
This phrase shows a self-defensive attitude and does not lead to actual improvement. As a team, it is important tolearn from mistakes and think of concrete improvement measures.

For example, if a member used incorrect data during a presentation at a meeting, it would be better for them to propose a new process—such as sharing and verifying data with team members before the presentation—rather than simply saying, "I'll be careful next time."

2. The reason for not saying "Be careful"

Similarly, saying "Be careful" does not lead to a fundamental solution. Furthermore, critical languageundermines team members' confidence and hinders creativity and open communication within the team.
Providing constructive feedback helps solve the problem and gives team members an opportunity to learn from their mistakes and grow.

For example, when a product quality issue is discovered, instead of a leader blaming them by saying "Be careful," it would be more effective for the team to discuss "how can we solve this problem and prevent it in the future" and search for a solution together.

3. The reason for proposing a system to ensure the mistake never happens again

When the person who made the mistake proactively proposes improvement measures, that experience turns into learning for the entire team. This not only fixes the mistake but also has the effect ofpreventing similar problems in the future.

For example, if incorrect information is communicated in a customer service team, the member who made the mistake can take the lead in reviewing the communication process and creating a checklist to prevent misinformation. By taking such measures, they not only prevent the mistake from happening next time but can also regain the confidence of the person who made the mistake.

The approach to "high-performing teams" we have explored today is more than just a business tactic.
It contains deep lessons that can be applied to our daily lives and relationships.
As Thomas Edison said, "I have not failed. I've just found 10,000 ways that won't work."
Mistakes are not failures, but opportunities to learn.

Keep this mindset in mind as you face your team, organization, or personal challenges. If you can accept mistakes and difficulties as steps to overcome and grow rather than fearing them, infinite possibilities will open up.

Our mistakes and failures are an important part of the journey to success. Understanding them, accepting them, and learning from them is what leads to true growth.

Thank you for reading until the end today.

I hope this is at least a little helpful to you all.

See you tomorrow.

End

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