Richard Childres Racing made a big change last week, which Kyle Busch hopes will help them improve after a less-than-stellar season. Competition director Andy Petree has stepped down from his role in the NASCAR organization. With Andy Petree retiring effective immediately, it does give Richard Childress Racing a new opportunity. Loyalty is important in motorsports. Keeping the right personnel is just as important as having the best driver. One way or another, Kyle Busch and RCR are in a new era. Petree is out and now the organization has to focus on results. At this point, Busch is about in a …