Cause & Effect Diagram depicting 'Golf as a System'
This single document started our 'Journey for Answers' many years ago:
1.  50 Uncontrollable Variables - generally causes which are hard to change or influence.
2.  100 Controllable Variables - generally causes which are easy to change or influence.
NOTE:  please do not confuse the technical aspect of the improvement journey and equate this to being more of a technical player.  Actually the exact opposite will result.  A feel oriented player will develop a heightened sense of feel and confidence, as additional sources of variation [ie - the noise] is reduced or nearly eliminated.

"Considering the vast amount of printed material covering golf [magazines, books,
trade journals, etc.] this C&E Diagram distills the whole game down to a single page."
Larry from St. Thomas, Canada - Recreational Golfer