Not sure if serious. Harden coming to Houston and exploding helped make this team attractive to free agents, and helped bring in Dwight. It'd be terrible if we off-loaded him. That would make us look terrible in the eyes of all free agents, or at least the main ones. Why would we be trading a 24 year old for a 30 year old anyway?
I would consider it when you factor in Harden is mentally weak for a superstar. Can't see him carrying the Rockets to a championship, not with the true superstars that are in the West like Curry, Durant, Westbrook, Duncan.