Use the law of diminishing returns to explain why pro golfer

Use the law of diminishing returns to explain why pro golfer Rory McIlroy should not spend all of his practice time working on his putting.

Solution

The law of diminishing return says that after a some optimal point of time if one put some extra energy that would be ultimately waste since optimality is already achieved. Similarly, by giving too much focus time and again by the golfer Mcllroy on his putting will reduce the chance of getting optimal outcome.