Sarcasm in your post wasn't really necessary but ok...as you wish we will blame you. Lets hope Petra will find better coach in a future who will manage to push her and her game to the next level (or that old level when she was top 50)
But seriously seems like Petra needs more belief in her abbilities, maybe from people around her too?
She showed already enough times that she has so much talent, for the start if only she could stay injury free for longer period it would already bring good results IMO.
Maybe she just needs more time, it's one thing when coach is telling you to do this or that and another thing to understand it all yourself which is main problem for her.
Anyway I'm sure she will go up in rankings again after clay season, not possible to fall down more.