Country vs. Snobby
At first, the character Blair was meant to be a fast-talking Texan instead of the eventually snobby, rich character. However, this changed when Lisa read the lines out loud because it fit her tone and style so well that the writers had to redo the entire role for her.
Whelchel stated that the script’s original line was read by her in a snide, patronizing, and sarcastic manner. She only realized after being casted for the part that they had rewritten the character to be more of a stuck-up individual.