Sara Radcliffe, who led the California Life Sciences Association through a merger of two of the state's largest biotech trade groups, will step down from the job next month.
The South San Francisco-based CLSA appointed Mike Guerra, an executive at companies selling into the sciences, as Radcliffe's replacement. Guerra. a graduate of San Jose State University, since August has been vice president of the Americas for Avidity Sciences LLC, a water purification and laboratory equipment company in Wisconsin,…