William Weldon will step down as Johnson & Johnson’s chief executive officer; vice chairman Alex Gorsky will replace Mr. Weldon on April 26th. Mr. Weldon will remain chairman. He has held both roles for almost 10 years and has been with the company for 30 years, starting out as a sales representative at J&J’s McNeil consumer division. Mr. Gorsky began his career at J&J in 1988 as a sales representative with the Janssen Pharmaceutica unit. In 2001, he was appointed president of...