Sounds like what I call the dreamer syndrome. Coming up with plans and putting some effort into the "dream" via talking but no action. The idea becomes the occupation.
Its clear he is dissatisfied with his life. Seems to have no idea how to move forward in a positive fruitful manner. Probably doesn't do anything of substance until he has no choice but to (i.e. losing a job and having to find another).
Or, he could just be lazy.
These are personality issues that aren't specific to addiction. My guess - he has always been this way.