What principle is the term for when a manager gives an employee feedback that they are getting closer, even by a small amount, toward the eventual goal?

The principle that is the term for when a manager gives an employee feedback that they are getting closer, even by a small amount, toward the eventual goal would be Kaizen principle. Kaizen is the practice of continuous improvement. It is an approach to work that systematically seeks to achieve small, incremental changes in processes in order to achieve a goal.