When Patton was confronting Rommel in the North African sphere, he had read the book(s) Rommel had written on warfare tactics. Similar to Napoleon who graduated from military academy so that he knew the oppositions military dogma before they enacted it.
The same can be said of the approach of Trump by Americas enemies in China and their proxies. They also employ spies and influencers in his orbit, their eyes and ears.
To be unpredictable Trump should operate in a different manner, less loud warning, more direct calls but then sudden actions that are not preceded by a tweet.