A trained biomechanist would likely consider the primary element for scoring well in golf as being your ability to move your bones around your joints with your muscles to consistently execute the tasks, skills, and/or techniques necessary to get the ball performance results you wish to get from each shot you try. A biomechanist would likely consider the club you decide to use for the shot at hand as a variable additional bone in your arsenal and therefore probably the second most important element to scoring well. Other considerations surrounding these two primary elements would be short and long term injury prevention, nutrition, physical fitness, thought process, footwear, clothing, gloves, equipment compatibility, etc ad nauseum. The third most important element to consistently scoring well would be how to implement any decisions you make that you believe could improve or at least maintain the first two elements.