Former vidgame company exec William Sorenson has been tapped chief financial officer of Bertelsmann’s eCommerce GroupSorenson, who will report directly to BeCG topper Andreas Schmidt, will also get a seat on the group’s board. Exec will oversee BeCG’s financial planning and reporting, as well as analysis of the company’s investments. He will also be in charge of the company’s human resources and legal departments. Sorenson was most recently exec VP and financial chief at computer gaming firm Acclaim Software. Before that, he worked for News Corp., most recently as a senior VP of finance, and earlier at Citibank and Bank of Boston.