How Do You Manage Variability?

Golfers need to understand that things are always going to be different every time they perform at their best. We never had any golfers ever said I have had two golf days that were exactly the same. So we want them to start identifying and writing down things they seem to do and experience when they play well. When they don't play well, what are the things that normally change? And then they start having a map, their own unique map, how to deal with this.