I have them start shoulder width apart(flat footed), balanced. Bat vertical, tallish stance, hands at the letters, no higher. I throw front toss moderately. The command is ‘keep your head still during the load’ and ‘you cannot move until the release of the ball’. Let them self organize to get the bat to the ball.Right she is compensating because, as it has been forever, she is moving out improperly. We talk about all this and I have her do dry movements where she is fine but once the ball is in the air...Thanks for the drill recommendation. @FP26 mentioned this a long time ago as well although I am not sure the modification he mentioned is the same as what you are suggesting.
front toss from about 10-15 ft away. Stay on them about not cheating to move early. On the release only! if done right, it cleans up a lot. Shows them they don’t need a lot to create a lot.
notice how the load takes place. Important.