‘Hard work ahead’: Diageo shares soar as Drastic Dave’s cost savings lift investor spirits

Diageo shares jumped as much as eight per cent on Thursday after the London drinks giant vowed to deliver as much as $850m (£631m) in cost savings, as new boss Dave Lewis vowed to turn around the firm’s fortunes. The FTSE 100 owner of Guinness, Johnnie Walker and Tanqueray reported a three per cent dip…