January 7, 2012 (La Mesa) -- In the past three months the La Mesa Police Department management team has gone through many new changes.  With Chief Lanning’s retirement in September of 2011 and Captain Medero’s retirement in December 2011, seven promotions of existing LMPD staff were made in 2011 to consist of a new Chief of Police, two new captains, two new lieutenants and two new sergeants.