General manager Ken Williams has been hard-pressed to project his 2012 Chicago White Sox roster because of subpar performances from several players. One of those players is center fielder Alex Rios, who batted .227, including a .213 mark in the first half. Paul Kinzer, the agent for Rios, hopes that Rios' .307 batting average in September can serve as a building block for 2012. "I think he thinks he can build on that and take it in," Kinzer said Monday at the general managers' meetings.