Jacques Martin needs help

Jacques Martin is the only GM/ Coach in the NHL right now. Martin is in the process of getting an assistant GM, for the heavy workload to come trade deadline. Martin is affraid that his GM work could affect his coaching. What I don't get/understand is the Red Sox have assitant GM's the Bruins have Jeff Gorton, if Martin is the only coach in the NHL to also be the GM why doesn't he have an asstiant GM? And why did they wait so long to start looking, in the middle of an NHL season?