How Do You Keep Players Developing When It Is Non-Linear?

From a coaching point of view is it hard to oh there's two parts I guess you've got the transactional nature often of tennis and golf coaching where you know someone wants to be better within the hour that they've just invested which is tough right. How do you have any ways in which you can keep players progressing or understanding that they are developing when it is non-linear in yeah in massive skill variationYeah so I suppose the first thing like the first kind of part of the question there I have I did struggle to add sometimes before especially like it can depend on the environment.