Identify and resolve every issue in the details, until the plan is viable.
When both people believe the plan is viable, then there's a slim three out of ten chance it might work.
Forget about being ten out of ten certain; that's impossible. Even having three or four out of ten is frighteningly high because it all depends on who the target is.
How to make both factions within Edelweiss board the helicopter at the same time—that's a huge problem, and if you add a Number Five, it becomes an almost insurmountable challenge.
Otto thought long and hard but couldn't come up with anything conclusive.
Because the plan had to progress, the target must cooperate, which means they need to stick their head in the noose themselves. The problem is, the members of Edelweiss have survived until now and made a name for themselves because they are careful and cautious.