Ryan Dempster is aware that his career with the Cubs is likely nearing an end. The right-hander has been Chicago's best starter this season, but they are in rebuild mode and moving him could bring some valuable pieces. "I'm not an idiot. I know how things go," Dempster said. "I know how it goes with players in contract years and the team not necessarily doing like they're supposed to be doing, there's always a possibility of things. There's a possibility of being traded anytime. "But I don't really think about it. I don't really worry about it because I can just control doing my job the best I can."