Much as I blame Sumyk for the deterioration of her game (I don't know how a player's best shot ends up becoming their biggest liability), Muguruza herself has admitted she is very difficult to coach. For that reason alone, I think Conchita is probably the right call. Clearly Garbiñe trusts her, and Conchita seems to be good at dealing with Garbiñe's moodiness.Yep. There was a post earlier in the appreciation society threaad, but it's kinda buried since I was the only one who replied to the news there.
I think I would have liked her to try something different...I wanted Safin as coach or even Ferrer. She has proven results with Conchita though with the Wimbledon run and she had some good results to start 2018 with her on board. I hope they can replicate that success.
Ferrer's an intriguing idea too. In any case, I suspect a Spanish coach is probably going to have an easier time navigating her temper/stubbornness than someone whose first language isn't Spanish.
Part of me thinks the game has already passed her by (Osaka has more power, Barty and Andreescu more variety, and all three seem much more focused with their eyes on the prize), but she's still pretty young given the current lifespan of a professional tennis player, so there's no reason someone as talented as Muguruza can't make another push for the top ten and even perhaps another slam run or two.