In the latest upheaval at NBC‘s ratings-challenged Today show, longtime director Joe Michaels has been named senior director of the show, the network said today. No word from NBC on what his specific responsibilities will be, but a source with knowledge of the situation says he will manage large initiatives and projects on the technical/directorial side, such as Today’s coverage of the Winter Olympics next February. There’s no word on who would be replacing Michaels as director of the morning news show. Today‘s ratings have been slipping for years but the program managed to keep its No. 1 slot until Ann Curry’s ouster last June. Since then, ABC’s Good Morning America has taken over the top spot. Last month GMA continued its dominance over Today by beating the NBC show by 1.6 million viewers. That’s the largest single-day total viewership spread GMA has had in fast affiliate results over the NBC show since May 18, 1994.