In some organizations, management has developed a goal of maximizing efficiency and keeping utilization high. The logic goes, if people are slacking off, then they have time when they could be producing value for the company but are instead just wasting money. And if people are 100% utilized, then they’ll be providing the most value possible.
This isn’t true. 100% utilization actually has a number of negative impacts, so it is important to have some slack time. It is equally important to make sure that time is used properly, though.