Okay, but she still "had to come out of her shell" to audition, right?? And she beat out her rivals -- in the first Act,.? So... mission accomplished?? What else is there for her to overcome, to struggle for?? She got the leads.
And by overcome and struggling I refer to an objective goal.? ?"Coming out her shell" is a general phrase relating to her internal subjective issue.? And that is important element in drama; that is what must be resolved in order to achieve an objective goal.
But a logline is a statement of an objective goal that must be achieved -- not the subjective problem that must be overcome.? So she must come out of her shell in order to accomplish what objective goal?? (And what are the stakes?)