While Bob Mansfield looks after Apple's special projects, two senior VPs -- Hardware leader Dan Riccio and Operations head Jeff Williams -- are handling his former duties as senior VP of Technologies, sources say. Riccio's tasks now include overseeing antenna design for mobile and the Wi-Fi components in all of Apple's major products. The situation is a reversal of the one that brought Mansfield out of his recent retirement, in which he was asked to transition wireless teams over to Riccio.
