Debra Crew has had a rocky year and a half since taking over as chief executive officer of Diageo Plc. The shares slumped. Sales dropped on cooling demand in China and the US. And the owner of Guinness and Johnnie Walker surprised investors with a profit warning just months into her tenure after getting caught out by piles of unsold inventory in Mexico and Brazil.

Diageo Plc is reviewing its portfolio, including Guinness beer and a Champagne and Cognac partnership with LVMH, as Chief Executive Officer Debra Crew seeks to revive growth at the UK drinks company.