Shift planning almost always fails for the same reason: not because of a lack of talent on the part of the manager, but because of an absence of process. The schedule is published late, changes are managed through informal channels, and when the Labor Inspectorate arrives, the time record does not match the reality of day-to-day operations. The Workers' Statute (Article 34) is clear regarding minimum rest periods between shifts and maximum working hours — but if the schedule is not managed well, complying with the law becomes complicated even if no one wants to break it.