Mark Cuban is guilty.
But so are a lot of other NBA executives (and players) when it comes to talking about LeBron James or other free agents who technically won't be on the market until July 1.
This is one of the reasons why the NBA needs to rethink its rules when it comes to people talking about free agents.
Consider what Chicago player development assistant Lindsey Hunter said on a radio show: "He's the most talented player in the NBA right now. I think you could never pass up an opportunity to have a guy like that on your team. That's a no-brainer."
Or this from Boston coach Doc Rivers: "That guy is a franchise changer. And if he decides to leave, it's going to change two franchises. If he decides to stay, it changes one or it continues one, so it's a huge story. It would be like if Michael Jordan had become a free agent and decided that he was going to leave. That story would have been just as crazy, so it deserves what it gets."
And then there's Knicks coach Mike D'Antoni: "I feel good about the possibility of being a very good team next year. I don't know anything yet about the main guy [James]. I really don't have a clue and I don't think anyone knows. But I am confident we can make it right. I do feel we're in a good position -- either way."
Lastly, Phoenix president Steve Kerr was asked by Dan Patrick whether the Suns were interested in LeBron: "If he'll take mid-level, we'll give it to him. I think he'll take it. Don't you think?''
These comments are no worse and no better than Cuban's, who simply said on July 1, the Mavericks will be trotting out their sales pitches.