I think Saad might be genuinely homesick, not just on of these other guys who pack it in 3 or 4 years later after a Melb club offers more money. I met him and his family before his debut in Broadbeach the day of his debut, they seemed a great family and all so excited to see him play. Given his Lebanese background I would suggest he's genuinely finding it difficult being away from them, given it's so engrained in there culture.
Would love him at Carlton, watched him so many times at the Suns and he's a guy who puts people in the stands just to watch him play. Sure his disposal isn't always the best but that can be worked on, most of the time it isn't even his poor disposal that's the issue. It's that none of his team-mates have to work rate to see what he's doing and get themselves open, so often they job behind him and by the time he needs to get rid of the ball all his teammates are behind him and his only option is a contest or get it to space.