Lightspeed Venture Partners’ Andrew Chung is heading to Khosla Ventures, where he will focus on the cleantech and information-technology. At Lightspeed, he oversaw investments in biofuel company Solazyme, solar company Stion, and clean coal company Coaltek, among others. Chung will help fill the shoes of cleantech partners Jim Kim and Alex Kinnier, who left Khosla last month.