At the risk of getting royally shot down I have to ask the following question.
Why in Gods name would any sane expat person leave a well paid secure job to join ARIK (or, for that matter, any airline in Nigeria, or for that matter any Nigerian company)?
Has the world gone mad or has no-one told these people what goes on in Nigeria. To my mind, they are one step away from "you got what you deserved".
Sorry if this sounds harsh but unless Nigerian companies have changed dramatically over the last 10 years, this isn't something that should have taken them completely by surprise.