Given both recent-ish issues at Roscosmos, and the relatively-famous Columbia rescue plan - https://arstechnica.com/science/2016/02/the-audacious-rescue... - I wonder if SpaceX has a quiet "we will always be capable of launching an extra Crew Dragon within X days" operating rule. That'd cost money...but have enormous appeal to both the spacefans in the trenches and the Chief Ego Officer.