B.J. Armstrong played six seasons and won three championships with Michael Jordan, which gives him an up-close, personal and unique perspective on the psyche of the player widely regarded as the greatest of all time. Armstrong, 48, does not believe it impossible for a current player to surpass Jordan, so it was with great interest that he read comments made by LeBron James that appeared Tuesday in a Sports Illustrated article. Now that he has delivered Cleveland its first championship in 52 years, James said his chief motivation is catching or eclipsing Jordan as the best player ever: "My motivation is the ghost I'm chasing. The ghost played in Chicago." Armstrong, now a player agent who represents Derrick Rose, has some advice for James. "Chasing a ghost is in make-believe land," Armstrong told ESPN.com in a telephone conversation. "That's far-out, that's unattainable, that's something you can't achieve. This ain't no ghost. If you want to do it, there's...