Nobody knows but..I watched a video a couple weeks ago where Willy OAM interviewed a former Marine who is over there fighting. He told of how he and a couple other foreign mercs would go out on recon and spot Russian positions and take the coordinates and call them back only to have the Ukies say they have not the artillery to strike...or plainly ignored it.
He said in no way will the Ukies win that war without boots on the ground from other countries. I got the drift that he felt they are incapable.
I've read others saying much difficulty with communicating with Ukrainian soldiers let alone their willingness to follow foreigners directions. They don't fully grasp they are subordinate especially when in a meat grinder of watching their people get chewed up.