Nationals general manager Mike Rizzo says that the team is looking to add a starting pitcher this offseason. According to a baseball source, Washington is looking at veteran right-hander Roy Oswalt as a possible candidate. Back in the spring of 2010, Rizzo had interest in Oswalt when the righty was with the Astros. "The type of pitcher we are looking for is a good leader-type of guy that throws a lot of innings, has shown that he can win in the big leagues and really lead our staff," Rizzo said without mentioning any names. "It's not by having the best stuff on the staff, but showing how to be a professional, how to be a winner, how to pitch 200 innings in a season many, many times in a career. That's kind of the guy we are looking for."