the executive should be practising the art of using their schedule to manage all their future activities, following the most recent research. In her latest book, Dezhi Wu from the University of Southern Utah confirms that the most effective time managers make heavy use of schedules, and little use of lists.
Unfortunately, most local executives don't use calendars in this fashion, and instead schedule little more than appointments with other people.
Most use lists, but run into problems when they need to plan complex activities such as a new project that requires multiple dependent activities ranging over several months.
Using lists requires constant monitoring, and many do a poor job of frequently scanning them, resulting in major items falling through the cracks.