The business affairs manager who has been promoted to general manager yet still keeps meddling in the business affairs department is making the same mistake as the Marquis of Wei, for instance. He's acting as a business affairs manager instead of a general manager.
譬如業務部經理被調升為總經理之後，但仍然對業務部門的意見特別多，這位總經理就犯了和魏文侯一樣的錯誤；換句話說，他是以總經理的職位做業務經理的事，非常危險。