I think it's a case of Russian generals forced to lead from the front to disentangle various fukkups--thus increasing their vulnerability---and a case of American/NATO signals intelligence finding their locations and feeding it to the Ukrainians.
“If you know the enemy and know yourself, you need not fear the result of a hundred battles...."
“All warfare is based on deception. Hence, when we are able to attack, we must seem unable; when using our forces, we must appear inactive; when we are near, we must make the enemy believe we are far away; when far away, we must make him believe we are near.”
“If your enemy is secure at all points, be prepared for him. If he is in superior strength, evade him. If your opponent is temperamental, seek to irritate him. Pretend to be weak, that he may grow arrogant. If he is taking his ease, give him no rest. If his forces are united, separate them. If sovereign and subject are in accord, put division between them. Attack him where he is unprepared, appear where you are not expected .”