Beyonce has requested that she sing the song "Popular" and so Winnie Holzman will have to write a sequence where Elphaba is travelling to school and contemplating how popular she will be.
And of course, Beyonce will want to write and perform a showstopper that will be nominated for an Oscar and it must compliment "Listen" so that in concerts she can perform the two songs as one medley.
If anyone ever tells you that you put too much Parmesan cheese on your pasta, stop talking to them. You don't need that kind of negativity in your life.