Naomi Osaka, Simona Halep and Sloane Stephens, who have combined to win four of the last six women’s Grand Slam singles titles, have all made coaching changes this year. It was a strange time of the season for all this to happen, but particularly in these cases.
Performance certainly wasn’t an issue for Osaka, winner of the last two majors. When something’s working, why would you change it? I didn’t quite understand the move—but relationships drive coaching partnerships, and if there’s unhappiness, I get that.
There are other reasons for coaching splits, including under-performance and pay. Family needs are also a factor, as we saw with Halep’s former coach, Darren Cahill, who wanted to spend more time with his children; or with Toni Nadal, who shifted his focus to the Rafa Nadal Academy.