Dear Client: Today Diageo announced that North America president Deirdre Mahlan will be retiring, effective June 30. Taking her place is Debra Crew, who will step down from the Diageo board to take the helm of the region.Deirdre joined Diageo in 2001, and rose in the ranks over the years to cfo in 2010 and North … Continue reading "Diageo NA Chief Deirdre Mahlan to Retire"