Adrian Baker is replacing Eric Stein as the managing director of one of the UK's leading online advertising networks, DoubleClick UK.
Baker, previously the managing director of Carat Direct and Carat Interactive before moving to Freedom Interactive, took up his position at DoubleClick this week.
Stein is returning to DoubleClick's head office in New York, where he will run international media, at the end of January. He joined the UK branch of the online advertising network in January 1999 to replace Andy Mitchell, who left to head AltaVista UK, then a DoubleClick client.
DoubleClick TechSolutions' sales and business development head for the UK and Ireland, Mark Gibson, has been promoted to the position of regional director for Northern Europe as part of the restructure.
DoubleClick has been hit by a succession of job cuts recently. In December, it laid off 150 people from its worldwide workforce of 2,100.
At the time, Stein said he believed DoubleClick held a dominant position within the internet ad sales sector, and stressed that jobs at senior management level would not be affected. He said that his decision to move back to the US was driven by a desire to return home, as well as it being the right time for the company.
'I wasn't about to just go and leave the UK in the lurch,' Stein said.
The network was one of many new-media agencies to be hit by staff cuts last year - its competitor, 24/7 Media also made nearly 200 staff redundancies in the US and streamlined its UK technology division.