The two appointments are a result of Gallot's decision to move on after 11 years.
Geary has been interim CEO for the last two months.
Gregor has been a non-executive director at the company for the last year.
Diageo chair Sir John Manzoni said Rishton brings 'a track record of creating sustainable, long-term…
The growth of e-commerce alcohol sales is one of the few bright spots within the…
The revised structure of the senior executive team will kick in next month.
