The entire Alteon/C4U/outsourcing debacle has one and only one explanation.
The pay and conditions offered to EK potential instructors at that time was entirely unattractive. For that reason no one applied to be a trainer although there were manifestly gifted people available within the EK ranks.
Rather than increase the amounts offered to internal candidates, Emirates expended at least double the money to acquire substandard training elsewhere.
If you examine this solitary issue from every facet: hubris, parsimony, childish intransigence, envy, and petty self-aggrandizement - you will have the Emirates man-management philosophy in a nut-shell.