Yes very quickly.
I think there's an enormous amount of research into the nature and the sources of the problem of demoralization and mental health challenges in the federal public service. I simply steer you to Professor Linda Duxbury, who has done a wealth of research in this area. It's not at all true that we don't have any grasp on the question or how to respond.
You're absolutely right that starting with a different tone is the first approach, which this government to its credit has certainly struck. I think ending the practice of using very misleading comparisons between the private sector and the public sector is an important part of that. When you talk about absenteeism in the public sector, you have to allow for different unionization levels, different age demographics, and the preponderance of female employment in the public sector. Once you do that, the vast majority of difference between private and public sector absenteeism disappears.
Simply throwing out this kind of thing to vilify and demonize public service employees is exactly the wrong way.