real reason. I get that once worked with audiences, the women cat fighting over a man or a job or whatever, but it's tired now. Move on.
I don't mind Britt needing a job/money storyline because she can't rely on what she had before and all her assets got frozen. She doesn't want to be Jason's kept woman and it gets her back in the hospital so that's fun.
I suspect Britt will be back as chief of staff soon enough, probably when the truth about all Portia has done comes out. They might even oust Terry because she will be "guilty by association" with Portia's actions while they were co-chiefs. Britt will become the sole one.