I didn't phrase my post quite the way I meant to. I wasn't implying that Trusova needs to be taught quads, but that Sokolovskaia is competent enough to train her as -and if- she gets them back after her injury. Someone suggested earlier that she's not, and that's what I was contesting.
Out of curosity, does anyone know who Sokolovskaia's most prominent students are, other than Mark? I have a hard time remembering the affiliations of Russian skaters. I wonder if Skolovskaia has more males than females, and if Trusova won't feel more at ease training with boys than among the many girls in Eteri's club.