We don't know how many contingencies were in THEIR PLAN. I'm sure it was layered, it wasn't one thing. What is to be confused about ?  They were, and are, willing to do anything. Up to the phone call they had already committed fraud, perjury, libel, espionage, blackmail, and extortion. They had spied on the President and Candidate without justification. If they could have knocked him out with a few leaks, great, job done. Over.   If that didn't work, then try some more and do something else.  They probably had progressive steps and back-ups...up to what, you can fill in the blanks as well as I can.