From the article:
> It had become clear to a growing number of practitioners that the most effective response to addiction had to be personal, and rooted in communities. Treatment was still small-scale, local and largely ad hoc.
> after 10 years of running the CAT in Faro, Goulão was invited to help design and lead a national drug strategy.
It seems to me this is really important. You can't just decriminalize drugs on a national level and expect things to improve on their own. These CATs were around for over a decade and seemed a large part of the success.