They need more time or other resources to do their work well
This question tends to score poorly in command-and-control environments where management defines work routines and targets, and uses metrics to check employees for compliance. This often generates resentment, especially if the people doing the work feel they could do better. It may be worth an experiment, using knowledge from the workforce to design new ways of working – people are usually more enthusiastic when they feel they have some control over work, as in life in general.