After three and a half years in Louisville, Courier-Journal publisher Arnold Garson is retiring.Forty-six of Garson's 70 years have been spent in the newspaper industry. The last 27 of those years were with Gannett papers: the Courier-Journal, the Sioux Falls Argus Leader, the San Bernardino County Sun and the Des Moines Register. Gannett now no longer owns the Sun.As publisher of the Courier, Garson oversaw the implementation of several Gannett-ordered rounds of layoffs and furloughs, which shrank the staff of many newspapers significantly.A call to Garson's office was not returned. He will leave the paper on March 2nd.