If Rubio is running an organization where it is common to "not get the memo" this is a bad habit for leaders at high levels.
A candidate is doing some of the things he needs to know to do as president, but we get to watch.
If he runs a campaign well , then he knows how to delegate , inspire and inform , such that his organization reflects well on him.
Perhaps we will also get to see how he corrects problems.
Without mentioning names , I am sure that you are aware that some campaigns run the candidate rather than the right way round.