"The Rockies are in a period in which they aren't bashful about using change. But despite the fact Huston Street has given up five home runs in his last eight appearances, he remains the closer -- for now. "Not today," Rockies manager Jim Tracy said when asked if he was considering changing his ninth-inning strategy. "But I do know this: we need to keep the ball in the ballpark." There have been several personnel moves, but Tracy also made a strategic move this week by backing right-handed setup man Rafael Betancourt out of the eighth inning while he tries to regain consistency. So if balls keep flying over fences -- the D-backs' Kelly Johnson was the latest to take Street deep, with a two-run shot that took the air out of a rally in a 6-3 loss Thursday night -- Street could find himself watching the Rockies try to close games."