Adam Scott , who announced on Sept. 17 he was ending his partnership with caddie Steve Williams , plans to use his next few starts to audition a replacement. The Australian will begin his 2014-15 PGA Tour season this week at the WGC-HSBC Champions in China with caddie-yard staple David Clark on the bag. Clark is currently working with Cameron Tringale and previously caddied for Vijay Singh . According to various sources, Scott will also give Matthew Tritton, who worked for Geoff Ogilvy last season, a tryout before making a final decision in January. Like he did last year, Scott plans to play the Australian PGA, Australian Open and Australian Masters to complete his season.