Originally Posted by 10istalent
He wants to add more slice, drop shots, rally balls to give her more of a game. We watched Ana konjuh and she has variety. What do you think? Change game or keep what works?
My guess would be (without knowing the new coach or his teaching philosophy) that he is looking to develop your daughters hand skill ("tuning the hand" as they refer to it in Spain). By helping her develop slice, drop shots etc, he will likely be helping her understand racquet face control and developing her feel for the ball - this will undoubtedly help her improve her current game style.
At least that's what I would be trying to do.