He had a short amount of time as an Lt and Captain in an LPD district a long time ago, but never really had to get his hands dirty with major crime. He was an administrative guy for the most part. I'm not surprised he surrounds himself with similar types of people or that none of them know how to counteract major crime. 9th mobile is a few divisions' flex platoons merged together. The units who would be interdicting and arresting the criminals doing the murders don't exist, like a gang or street