Worried about losing a client, a brief or someone's approval?
Watch what happens to your standards.
You tell someone their behaviour/work/effectiveness/communication isn't acceptable and needs to change.
Then finish with, “But overall, you're doing a great job.”
So which is it?
Something needs to change, or overall everything is fine?
You've just undermined the very feedback you needed them to hear.
Your Personal Bar™ isn't what you say your standards are.
It's what your daily behaviour shows they are.
If you're not prepared to hold your own standards, why should anyone else?
What's one standard you've been avoiding holding someone to?