It was never a question if Elphaba would take the place of her great-grandfather. She was simply too antisocial. Or at least, that's how Frex justified it to himself. Really, and most people knew or assumed, it was her color. It was only just that Frex though it unfair that he should be so godly and Melena so important and they weren't graced with three normal children. Surely he deserved an undamaged girl. He was so preoccupied with his misfortune that he somehow managed to miss raising all three of his children properly.