Perhaps you think the Bulls are better than Charlotte? They aren't. Chicago is 19-36. Charlotte is 18-36. The Hornets are 2-1 versus the Bulls this season with their lone defeat coming by one point. Charlotte covered all three games versus the Bulls and is on a five-game ATS run against Chicago going back to last season. 
The Bulls would be superior to the Hornets if they were fully healthy. That's not the case, though. 
Center Wendell Carter Jr. is the only key injured Bull set to return today. Lauri Markkanen, Otto Porter Jr. and Kris Dunn all remain sidelined. Take away those players and Charlotte has the better roster. Zach LaVine gives Chicago the best player on the court. After that, however, the Hornets have Terry Rozier, Miles Bridges, P.J. Washington and emerging star Devonte' Graham, who is quietly averaging 18.1 points and 7.8 assists per game. Carter last played on Jan. 6 so he figures to be rusty and could be on a minutes restriction. Note the Bulls held LaVine to 4-of-19 shooting from the floor when the teams last played with Charlotte winning, 83-73, on Dec. 13 in Chicago. 
Charlotte comes out of the break having posted consecutive road victories against the Pistons and Timberwolves. Graham is playing his best ball of the season. 
The Bulls, on the other hand, have dropped six in a row. Among these losses were by 15 points to the Nets and by 12 points to the Wizards. Chicago isn't a strong home team especially versus weaker foes where they are 9-24 ATS the past 33 times hosting sub .500 opponents.