The face of the Better Business Bureau’s Cedar Rapids office will change later this month.Barbara Green, director and sole staff member of the consumer-protection organization’s Cedar Rapids office, has announced she’ll retire May 25. Des Moines-based BBB Serving Greater Iowa, Quad Cities and Siouxland Region opened the Cedar Rapids office in the wake of the 2008 flood.“It became pretty evident the BBB needed a presence here,” Green said.