Yes, the picks that Mr. Trump is making for his Cabinet are a betrayal of his campaign promise to drain the swamp because he is picking billionaires to lead his presidency. He is picking Washington insiders and Wall Street executives. How is that draining the swamp? That is making the swamp more polluted.
The selection of the Trump cabinet members included many inside Washington players that contradict the promise to drain the swamp. Trump is going to need some experienced political allies because Trump lacks any inside experience. Many of the Trump campaign promises may be broken as he tempers the decisions for the whole country.
Yes, the picks that Mr. Trump is making for his Cabinet a betrayal of his campaign promise to drain the swamp of D.C. corruption. The appointees that Mr. Trump has chosen read as a who's-who of privileged billionaires and long-time Washington insiders. If he wants to stay true to his campaign message, he needs to find some fresh faces.
Trump is a successful businessman, and as such he knows his limitations on his knowledge on the world of politics. It's better to put a member of the establishment in a position that requires someone experienced in the field than to put someone who is outside of the political loop who may cause problems with the responsibilities he or she may have. If Trump did pick people who were not of the establishment, he would still be facing criticism like he did when he selected Bannon.