Board Thread:Naruto Discussions/@comment-2245550-20160501143136/@comment-734582-20160501145916

I got the impression that's what Kabuto was there for. Even so, it's clear that Orochimaru kept many of his underlings in the dark about the true nature of the mission, and so it's doubtful that they could've spoilt the plan.

Furthermore Orochimaru was smart and capable, but i don't think he was ever truly arrogant.