As a manager I find myself more than often strugling with this issue, time management. One point presented during the course is the fact that regerdless of your level of education one may still not been a great manager of time. In retrospective if you take a look at our educational system we are not taugh how to properly managed our work schedule or personal life.
Too often senior managers assumed that education is equal to the ability of managing time and when the subordinate fails to meet deadlines rather than received guidance they are reprimand creating an unpleasant environment for both the senior manager and the subordinate manager.
I will conclude by suggesting that corporations need to help employees by investing some typa of resources in providing time-management training. It could be a very wisely decision.