BBC Worldwide president and managing director of sales and distribution, Steve Macallister, will exit the commercial arm of the pubcaster on March 31. The move comes as BBCWW is shifting the management of sales and distribution to the regional level. Macallister joined the company in 2007, growing headline sales to £292.7M in the last fiscal year. BBCWW handles about 50,000 hours of BBC and independently-produced content including such series as Doctor Who, Top Gear and Teletubbies. As part of the restructure, Helen Jackson has been named chief content officer. Paul Dempsey recently took over as interim BBCWW CEO until Tim Davie can assume the post in March. Davie is currently acting director general of the BBC, having stepped up when George Entwistle resigned in November.