It would not be wrong to suggest that IT departments would often focus on their regular jobs. They would not be training employees and fixing the various kinds of printing problems. It would not be in their top priority list. Therefore, you would require managed print services to assist the employees in training and providing help desk support for various kinds of print issues.
It would be in your best interest to make the most of print management services to ensure quality and increased productivity of your business. However, you should be able to choose the right print management services for your specific business needs and requirements.