The list of prominent Australians who have been called in as troubleshooters includes retired judges Ian Callinan, Geoffrey Davies and Julie Dodds-Streeton at CBA; former Victorian premier Jeff Kennett at Coles; former chief commissioner of Victoria Police Ken Lay at Australia Post; and former prudential regulator Jeff Carmichael at CBA.
Take context from the input text and decide on the accurate relationship between 'Ken Lay' and 'chief commissioner of Victoria Police' from the options provided.
Options: industry, currency, position held, distribution format