—CBS: Aaron Radin has stepped down from his post as SVP-ad sales and business development for CBS Television Stations Digital Media Group, he told paidContent. Prior to joining CBS he was VP-business development and ad sales strategy for GoldPocket Interactive, and earlier managed sales at Walt *Disney* Internet Group.

—Razorfish: Sarah Baehr adds national media discipline lead to her current role of VP-media. She replaces Jeff Lanctot, who was recently named chief strategy officer. Now, Baehr will manage the agency’s media buying and be responsible for digital media spending. Release.

—Microsoft: Two promotions in the Media and Entertainment Group: Christina Calio and Marcel Garaud, Billboard reports. Calio, who has been at Microsoft (NSDQ: MSFT) since 1999 and headed music biz dev, is now Microsoft‘s director for the Entertainment and Devices Division with responsibility for business development and industry relations. Former Sony BMG exec Garaud will lead the music acquisition and business development for Zune and Xbox.

—Buzztime: Jeffrey Lewis has been appointed EVP-digital advertising sales, where he will spearhead sales growth and display ads in North America. Lewis comes from Ripple Networks, where he was VP-sales.