I haven't said that at all. What I have said is that we all need to change and I have a desire for it to change.
As do I. I agree too much is pushed onto managers. But again, I don't think there is a utopian communication system, although love to hear suggestions for improvements. If it isn't too be top-down, there we must rely on staff of all grades and disciplines to proactively find the information through a "grass-roots approach", however some will not as they do not believe they have a problem with their mental health / wish to keep things private. In some cases it may be hard to find unde the noticeboard buried with information. It's a Catch 22.
Most managers I know are happy to help and will gladly signpost in the right direction. As I said before, it is best they receive the right support and there's no easy fix to this as although we would like all managers to have a detailed discussion with everyone, as you've already mentioned they are unavailable / overloaded. Having mental health reps in each depot or local LDC might be a step forward.