"Sidetrack" ranks
I was going to comment that saying “... the diversity of ranks stemmed from the use of some grades as the administrative equivalent of railroad sidings.” was being kinder than Siegfried Knapp was, but you beat me to it 😆
I was going to comment that saying “... the diversity of ranks stemmed from the use of some grades as the administrative equivalent of railroad sidings.” was being kinder than Siegfried Knapp was, but you beat me to it 😆