Trump's behaviour (belligerent, hanging up halfway, giving different instructions to his team, the US government, the Australian government and TWITTER) to Australian PM Turnbull (leader of a right wing party, from a country and party known for xenophobia, racism, cruelty to refugees and minorities, conservativism, and slavish following of the US) demonstrates this is really amateur hour.
Maybe Bannon etc have a "master plan" but Trump himself is far to undisciplined and childish and unpredictable to execute anything