The plan was never for Jeb to win primaries.
They know he could not possibly enough to win.
The plan was for this 17 man rugby scrum to deadlock and throw it to the convention, where Jeb could be nominated by insiders in a formerly smoke-filled back room.
Jeb tipped the establishment's hand when he said:
"You've got to be willing to lose the primary to win the general."
That statement makes absolutely no sense, unless you realize that the GOP-e cabal always intended to steal the electoral process from the people.