Unwritten Rules of Management
Boston.com
W.J. King: “When you are dissatisfied with the services of another section, make your complaint to the individual most directly responsible for the function involved. Complaints made to a man’s superiors, over his head, engender strong resentments and should be resorted to only when direct appeal fails.” William Swanson: “Never direct a complaint to the top. A serious offense is to 'cc' a person's boss.”
W.J. King: “When you are dissatisfied with the services of another section, make your complaint to the individual most directly responsible for the function involved. Complaints made to a man’s superiors, over his head, engender strong resentments and should be resorted to only when direct appeal fails.”

William Swanson: “Never direct a complaint to the top. A serious offense is to "cc" a person's boss.”