Honestly, Its just a big moneyfest. Cleveland isn't a big enough market for a prodigy like Lebron, so he made a deal with the devil to go to south beach. After the Olympics, that devil David Stern told him if he went to the bigger market in Miami, he would get him his ring there because he could line it up for him to go play with DWade and Bosh. In Sterns eyes financially it was what is best for the league. Stern doesn't care about the little guy. So, I think Lebron quit in 2010 because he knew he was leaving anyways, he just needed an excuse to bail out of the playoffs (elbow). However, Lebron is too good, so at that moment it should have been clear that he was set up to leave after that faked injury. At the same time while Lebron was riding it out in CLE, Miami was making moves to give itself cap space to prepare for Lebrons coming.
It is of upmost importance that we get a second superstar next to Kyrie. If we do not, and Kyrie Irving becomes a top 5 player, if he wants a ring, he will be gone. David Stern will not sit around and watch cash cow Irving rot away his career in CLE winning nothing. Stern will try to tempt Kyrie into going to a bigger market to play by guaranteeing him a ring and one or two other superstars. Same thing he did with Lebron. So, we need to make moves, and we need to make them now to ever have a fighting chance in this league. Our window of time is small. You can not rely on "player loyalty" when they want a ring. The prize of going down in history is greater than the temtation to stay "loyal" and lose all that. So, get it done, Grant.
Edit: oh and I think that Lebron tanked on purpose last year just like he did in 2010 on purpose. He looked like he was doing it on purpose. I do not think he "choked." I think he was told to play poorly, so the league wouldn't look as bad. Because everyone knows that if they won the title their first year together there would be problems. I mean the Mavs were a good team, but I just think Miami lost on purpose more then the Mavs won undisputably.
