Sheryl Sandberg?
Bringing in a "Traditional" Social media Exec will just result in repeating the same policies all social media companies have, including the clear political bias all of these companies have
I think Sheryl Sandberg running Twitter would be a great idea. She definitely has a ton of experience, is used to dealing with complicated founders and executing on their vision, the only place that she could move up in her career is to be the CEO of not just a large corporation but something meaningful.
In a way Twitter and Facebook are no longer as directly competitive as they were in the old days when it was just FB and Twitter.