A big part of my job would be proving to her that she is wrong and getting her on board for the change. A lot of coaches do teach from a place of total authority...what they say is right, because! That can work for kids, but I find practical evidence to be much more persuasive with adults. Of course, some people just cannot be helped. Becky may take one lesson with me and decide it isn't worth all the trouble. Of course I might also choose to build her confidence in me by pursuing some changes that have a much lower bar to clear to begin being effective. Then when she is already along for the ride you whip the grip change on her!That is exactly what a lot of adult lessons are like: Becky with her EF grip for volleys telling the pro that EF "works for her."
I am loving this. I really am.