As the nation’s opioid epidemic rages on, the federal agency charged with leading the government’s response to substance abuse is changing the way it helps local communities. But critics say the move risks leaving programs with fewer resources until the new plan is in place. The controversy began in January with a low-key announcement by the Substance Abuse and Mental Health Services Administration. Rather than continue hiring contractors to pair experts with communities, as has been done for years, SAMHSA’s new approach will “utilize local expertise” to provide technical assistance and training. This effort will “focus on the specific needs...