As Linksys, the home-networking and consumer division of Cisco Systems, enters the next phase of growth, the company is <A HREF="http://news.zdnet.com/2100-1035_22-6071029.html?tag=zdnn.alert">bringing in a new leader.</A> On Thursday, Cisco plans to announce that J. Michael Pocock, the former CEO of Polaroid, has been appointed to the position of Linksys senior vice president and general manager. Victor Tsao and Janie Tsao, Linksys founders who have shared this title since 2003, will now focus their efforts on new opportunities in China for Cisco.