Here is the tough thing about these stories, it isn’t like Dwight Howard can just come out and say he has beef with Harden and wants to be traded, even if that is how he feels.
So, it comes down more to who do you believe. The source of the rumor in this case is Sheridan Hoops, so do you believe them or do you believe Dwight?
Dwight Howard on report he is very unhappy with role: "“I haven’t said anything to anybody about anything. People make up lies and rumors."
— Jonathan Feigen (@Jonathan_Feigen) December 16, 2015
There is a way that both can be telling at least the partial truth. Maybe, Dwight vented to someone who in turn told Sheridan. The Rockets are struggling, so it is possible Dwight is frustrated about his role in the offense.
Only Dwight knows the truth, but this is a man who has consistently lied about how many kids he has or what teams he wants to play for, so you have to take that into consideration when he gives blanket denials on anything.