I agree with Cabo that what you are referring to here sounds more like what we refer to as "Attempts to Moderate" drinking.
I can't speak to it as a long-term workable solution in terms of statistics, etc. but I know from reading here for years that I have never heard of it working for any member that has tried it. The problem is that this is a progressive disease, so feeding the monster a little at a time keeps the addiction alive & growing stronger while the Ego foolishly believes it is in control. But you can't stop physical dependency from progressing & at some point the person looses the ability to choose - letting the addiction take the driver's seat & dictate choices.
Search out "Moderation" in this & other forums here at SR (especially the Newcomer's & Alcoholics forums) & you'll find all kinds of stories.