How many people do you manage? None? In that case, it's £42k a year'
Bloody hell - surely Brookes sorted out the managers/workers equivalence thirty years ago in The Mythical Man Month?
Though you wouldn't think so - everywhere I worked in over forty years did the same trick: promote engineers eventually into management - where they had no chance to do what they were good at and were usually very bad as managers, as well as hating the management process to the extent of resigning.