Akhantieva / Kolesov to Fedor Klimov in Sochi, Kostiukovich / Briuhanov to Nina Mozer team in Moscow.Who they switched to? And what caused this exodus?
I think, A/K wanted some coaching change to reset their career. About Polina they say she fell in love with an ice-dancer from Moscow and wants to be closer to him. If that is true, then it's some kind of deja vu. (It reminds me of Stolbova / Klimov switching to Mozer when Ksenia was in love with Dmitrii Soloviev. But of course for S/K it was not the main reason for the relocating and changing the coaching team).