"You can train skill.
You can't train attitude."
That's the lesson Barbara Corcoran learned while building one of New York's top real estate brokerages.
When someone wasn't a cultural fit, she didn't overcomplicate it.
The issue wasn't always performance.
It was attitude.
Because skill gaps can often be fixed.
Training helps.
Experience helps.
Coaching helps.
But a poor attitude is different.
It spreads.
One negative person can quietly lower standards, drain energy, and affect the people around them.
That's why culture isn't built by what leaders say.
It's built by what leaders tolerate.
Of course, not every struggling employee has an attitude problem.
Sometimes expectations are unclear.
Sometimes the role is wrong.
Sometimes people simply need support.
The best leaders know the difference.
They coach capability.
But they protect culture.
The lesson:
Your standards become your culture.
And what you allow today becomes what your team accepts tomorrow.