I certainly hope you and your team are successful. One thing "I think I think" is that while all alcoholics can't imagine life without alcohol, those that are receptive to help are the ones who still can't imagine life without alcohol, but get to the point they can no longer imagine life WITH alcohol. That points to Bear's comments about allowing them the dignity to experience their own consequences. Many die before they get there, but we can recover if we want it and are rigorously honest with ourselves and others.
Without consequences, the screaming disease in the mind drowns out logic and reality. It says we're losing our best friend and our lifeline to ease and comfort. When the heart and soul get sick and tired of being sick and tired - the the gut level feeling of knowing it can't go on like this opens the blinders to another way of life.
I pray your team and those around him can break through that barrier and he comes to realize he can't live with alcohol any longer. Having an recovered/recovering alcoholic talk the language will really help. Seeing a living, breathing, at ease soul who had the same horrific fears about how he'll navigate life without his crutch is the gift of hope for us. It literally feels impossible to us, until we see evidence it can happen, hear our own story in someone else's, relate, and think...maybe there's a chance.
Godspeed.