Sam has a litany of problems, but I think his biggest problem isn't one of ability but of recognition. He doesn't recognize/realize how bad he is at the simple things (passing is one of them, but watch him dribble, it's scary)...he doesn't recognize that working on his 19 footer isn't a good addition to an empty arsenal when he doesn't have the basics down.
To me - it all starts with that recognition of what needs to be done and then the dedication to get it done - those are two bigger problems than the actual problems - hands, dribbling, boxing out, counting to 3, learning where to be on defense, these are things that can be fixed but not without a recognition that they need to be fixed and a dedication to getting them fixed - that's a failure by Dalembert but that's a failure by the sixers as well...i know he's a grown man and working ajob but sometimes you have to find a way to motivate an employee