Also departing with Trimby, who started his career at Diageo, will be Neil Barker, commercial director UK & Ireland and Stuart Pickles, commercial director Continental Europe.
As a result of the restructure Treasury Wine Estates, which owns brands such as Penfolds, Lindemans, Wolf Blass and Rosemount, has created three new business units.
They will focus on the key markets in mainland Europe, the specific needs of the Nordic markets and the UK & Ireland.
Each of the three business units will be headed up by a general manager. Treasury Wine Estates EMEA announced last week that Dan Townsend, formerly managing director for Maison Louis Latour, has been appointed to the position of general manager for UK & Ireland.
Calum Grant-Wood has been appointed to lead the new Continental Europe business unit. Calum has been with Treasury Wine Estates for nine years and has previously held the position of regional manager Southern Europe.
The business unit in the Nordics is now headed up by Jonas Hillergren who joined the company in 2007 and previously held the position of regional manager Nordic Markets.
Peter Jackson, the managing director Treasury Wine Estates EMEA which was previously known as Foster's EMEA, said: "This restructure will bring our marketing and commercial teams together into one focused business and will ensure that our customers and consumers have a dedicated approach in each of our key markets.
"This restructure hasn't been taken lightly but I believe that our new structure will take our business and brands onto a whole new level."
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