Kenneth Douglas’ first six months on the job as Trenton’s fire director were, in a word, bumpy. He arrived in the late summer of 2021 and firefighters were leery of another outsider being named to the post. He’d served as a firefighter in Newark and director in Orange. And one of his first changes seemed small but caused a large wave of anger. In early 2022, he introduced a new uniform patch that scrapped the iconic Iron Fireman design – which firefighters loved and said was unique – for an image of the Statehouse. Firefighters pushed back hard, one started an online petition to halt the new p…