I (Peter) started playing golf a few years back and then for my birthday my sons gave me some golf lessons. All of a sudden, I was a beginner again, which I think is important to experience as a coach.
As a coach I (Peter) like to teach what I call “functional tennis”, where I would not necessarily change e.g. a more old-fashioned eastern grip, but instead work around it because my (Peter) belief would be that they would never change it.
Then when I (Peter) had the lesson with the golf coach she told me (Peter) “I would like to change your grip, because now you played a few years and in order to further improve it would be a good idea”. I said: “Oh, don’t do that – my grip is very close to what you are suggesting”
Anyway, we changed the grip. At first it was awkward, but then after one week of practice it became more normal and I (Peter) slowly learned it. Then after 6 months more the golf coach said that I (Peter) had to change the grip again. Again I (Peter) was hesitant, but it worked fine with a little bit of patience and that made me (Peter) think that maybe I (Peter) could actually do that with tennis players as well.