Unprofessionalism

Yesterday, LeBron James, one of the greatest basketball players ever, announced his intentions to leave his home team and go to Miami. Miami was incredibly happy, Cleavland, where LeBron was before, was incredibly sad.
LeBron had lived in Cleavland all of his life. Why did he decide to go to Miami.
I have a few theories.
1. (most likely) he left because he wanted to win a championship, and Chris Bosh and Dwyane Wade are playing for Miami this year. LeBron has not won a championship to date. He has been playing for seven years.
2. Miami offered him more money then all the other teams that wanted him. I don't find this likely.

But that isn't what I'm here to talk about. The Cleavland Cavaliers where, understandably, upset. But their owner, Dan Gilbert was no doubt more upset then the rest of them.
He published a letter on the Cavaliers website. Ripping on LeBron for leaving them.
He called LeBron cowardly. He showed us the epitome of unprofessionalism.

If you want to see the letter go to:
http://www.nba.com/cavaliers/news/gilbert_letter_100708.html