Diageo has confirmed fears that bringing brewing and spirits under a single management will cost high level jobs. A spokeswoman said: "There are obviously casualties when two companies merge." Her comment follows the announcement of senior appointments. UDV chief Don Goulding is md for Great Britain. Brian Duffy, formerly md at Guinness Ireland, heads Irish operations and Nick Bell, formerly Guinness marketing director, will become global brand director. Guinness senior executive Allen Peeters will run global supply. {{NEWS }}