Cavaliers owner Dan Gilbert wishes he could take back that guarantee about winning an NBA title before LeBron James. When James left Cleveland for Miami as a free agent in July 2010, Gilbert famously predicted in a letter to fans that his Cavs would win a championship before James got one with the Heat. Well, that ended in June when James led Miami to a finals win over Oklahoma City. Before the Cavs opened their season Tuesday night, Gilbert said the guarantee "was not the most brilliant thing I've ever done in my life." Gilbert also said in hindsight he would have handled James' situation differently. He said the lesson learned is that "you can not risk going into a summer and having them (a player) leave in unrestricted free agency and get nothing back for it."