Divide responsibility and nobody is responsible.
When we cooperate, everybody wins.
Management is prediction.
Managers don't like giving appraisals, and employees don't like getting them. Perhaps they're not liked because both parties suspect what the evidence has proved for decades: Traditional performance appraisals don't work.
When people try to do what they can not do, they wish to give up.
The result of long-term relationships is better and better quality, and lower and lower costs.