The last element to balance your plot outline, Preconditions, is a junior version of Forewarnings. Preconditions are small impediments in the plot. They are stipulations laid down by certain characters that make it more difficult for the Story Goal to be achieved.
A classic example is Pride and Prejudice in which Elizabeth’s quest for happiness is made more difficult by the terms of her grandfather’s will, which state that the family property can only be inherited by males. This means that, upon her father’s death, Elizabeth and her sisters will be penniless unless they find good husbands first.
However there are many other ways characters can impose conditions that impede the attainment of the Story Goal. They can make their help conditional on favours, insist on arduous rules, or negotiate tough terms.
For instance, perhaps the company where our female executive works has a rule that executives must attend meetings very early in the day – say 6AM on Saturdays. This rule makes it very hard for her to go on Friday night dates and be alert in the meetings. Or perhaps the singles club she joins has some seemingly unfair rules that cause her problems.
You know what to do by now. List possible Preconditions your characters might encounter, and choose one you like.