David Moore, the ad exec who has helped lead WPP Group interactive shop 24/7 Real Media since its days as a startup 12 years ago, is stepping aside as CEO and handing the reins to Jonathan Hsu effective immediately. Hsu, 36, previously served as 24/7’s EVP/COO. As part of the move, Moore will take a wider focus on crafting strategic relationships, recruitment and business development.  He’ll also still work with WPP Digital on getting the various parts of the company to be more tightly integrated.

Hsu has been with 24/7 since March 2000. As COO, he was credited with managing the shop’s $649 million acquisition by WPP and on forging partnerships with Yahoo (NSDQ: YHOO) and Japanese ad agency Dentsu. Before being named CFO,  Hsu was CFO and SVP/Corporate Development and Strategic Planning. Release

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