ATLANTA, May 12, 2008, 9:40 a.m. - Two top executives are leaving black media giant Radio One, as the company continues to struggle. Alejandro A. Clabiorne, vice president of marketing for the company, has given his notice and Lee Michaels, national program director for Syndication One News/Talk, has already left, three sources tell Redding News Review. Click here for the full story from Redding News Review…