In general, the beforehand-manager must consider it part of his or her job, if not life. To know whether someone is organized doesn't take a psychic. Most people can tell by looking at someone's desk. It's impossible to be organized with horizontal piles on a desk. Information is not meant to be stacked, because no one can effectively deal with papers that are covered or scattered.
People can use information if it's in a filing cabinet with labeled tabs pointing upward.
In the same way, one can use stacking trays and folders, provided that the tabs are in clear view. That would change my routine. Yes, but keep in mind that the principles of deskmanship are quite general. To the cave man, life was a spear. To the gladiator, life was a chariot.