Should the Heat trade Mike Miller for a big man?

The Heat really don't need Mike Miller since James Jones has been playing really well this season. What's killing the Heat is the lack of an inside presence. When teams play Zone defense the Heat are forced to take jump shots like in the Mavs game yesterday. With a decent big man, the Heat won't have to rely on jump shots when they can't attack the basket. Maybe we can try for Javale McGee or Roy Hibbert.