He had some political ingenuity for sure.
Otherwise he couldn't win over his rivals, such as Romh, the storm trooper leader. And he had control over the people ranked next to him, such as Himmler, Goring. I don't buy into the account of one British writer. Whoever he is, he is certainly underestimating Hitler, haha. Hitler was a monster, but not a buffon or deranged person from the start.