Essential attributes!

Three decades ago some cogniscenti were told, At conference of eggheads, a story then bold! Bad staff appointments, the Council had faced; Sub-standard officials, had the city disgraced! To fill post in own office, the Mayor’d insisted On outside assistance, so boffin enlisted! Candidates for position narrowed to three; How successful one chosen?.. just wait and see! Among boffin’s questions in the course of his task, What’s one plus one?.. a strange thing to ask! Three different answers, you may find surprising; What’s this about?…Mayor’s blood pressure's rising! Two, eleven, but third lady said both; Accurate, imaginative, potential for growth! Who do you want?….boffin on tenterhooks sits; Then blurts His Worship: the blonde with big tits!