How will the Mavericks guard Lebron?

Not saying it can't be done but he's bigger than Westbrook and better than Durant, not to mention you can't really double-team him or Wade and Bosh get open looks so what's Carlisle's plan? And speaking of, can we agree Dirk is not top 10 in history like his coach says? I say not or even top 20, MAYBE top 30 but probably top 40.