If kids like a picture book, they're going to read it at least 50 times. Read anything that often, and even minor imperfections start to feel like gravel in the bed.
In this context, I believe it is an imperative for the new President to select and install his team as quickly as possible, and this does not imply that he must or should appoint members of the 'other' party to his Cabinet, which could contribute to inaction and inefficiency.