Kyrie was sick and tired of not being the star of the show while Lebron James stole all the glory. Kyrie is a very good player and he wasn't getting as much respect as he wanted so he wanted to leave the Cavs. The Cavs and Celtics negotiated a trade and it was Kyrie for Isiah Thomas, Jae Crowder, Ante Zizic. Kyrie is now the star of the team and is the best player now on the Celtics. The Cavs now Have an amazing roster. They Basically have a superteam now, they have Lebron James, Derrik Rose, Kevin love, Isiah Thomas, and J.R Smith. The trade with the Cavs and Celtics gave a huge advantage to the Cavs and it was a good overall trade.