Tweet and sour for knocked Knick Carmelo

Phil Jackson may be trying to trade Carmelo Anthony because he's given up trying to change him.

That seemed to be the conclusion on Tuesday when the New York Knicks president of basketball operations broke his Twitter silence with another dig at the star forward.

In the tweet, Jackson referred to a column by Bleacher Report writer Kevin Ding that suggested Jackson is frustrated because Anthony doesn't have the same will to win as Michael Jordan and Kobe Bryant, two of Jackson's greatest players when he coached.