Say you have a kid who plays golf, and he swings like Jim Furyk. He's pretty good, but his swing is definitely weird. Do you take him to a teacher to "fix" it, or do you leave it alone and see what happens? In the vast majority of cases, especially in this modern age, the answer is "make it better, make it follow the rules", whatever they are. But for every Luke Donald or Trevor Immelman or Sean O'Hair (classic swings), there are examples of the other end of the spectrum, the idiosyncratic "homemade" swings of Furyk, Bubba Watson, Ray Floyd, Lee Trevino. The fun thing is to look at all successful swings and see how they work.