Another possibility for Sec of State would be Harry Reid. Harry is retiring from the Senate this year but I bet he will soon find retirement boring and would jump at the chance to get back into public service. Like Little Debbie Wasserman Schultz his word is solid gold so Hill might have a tough time deciding between the two. Below is five great examples of his golden word.
https://www.youtube.com/watch?v=K1qFiqMXxjE