It seems as though Lebron James has the Bulls number. According to Wikipedia for a brief period last night, Lebron has a lot more than that, as he was listed as the team's owner.
Lebron's teams have eliminated the Bulls in four of the last six postseasons, with both the Cleveland Cavaliers and the Miami Heat. The Cavs are now on to the Eastern Conference Finals while the Chicago Bulls are going home. To make matters worse, Wikipedia's page may change soon, under the head coach title, if indeed Tom Thibodeau is let go, as has been speculated.