I wasn't a big fan of Marrone, but I didn't want him to opt out. Thought the team needed help on offense and we'd be a solid contender. However, he quit and whatever reason you think it may be, you don't know.
I can't imagine any scenario that he would want to come back or be welcomed back. It just makes no sense at all to even consider this. You often make solid points in your posts, you missed big time here.