Sales
Salesmen and women are the great boon and utter bane of every commercial enterprise.
Salespeople are just as thoroughly aggravating, yet quintessentially vital to the organisation's well-being, as its clients[1].
Salespeople are a kind of fifth column - a proxy - they can and do represent the client in the interior monologue of a modern investment bank. Which is why they will instinctively parrot that great lie all our other counterparties have agreed this.