You would get glimpses of how talented she is and then she would throw in huge stretches of unforced errors coupled with a sense she didn't know how to construct points.
Hopefully her play this summer and here at open are indicative of her turning the corner
Same could be said of Stephens for different reasons. She has shown flashes of her potential only to retreat into passive play. Hopefully she has turned the corner too. She seems to have a more aggressive mindset since returning from injury.