The trouble is that it's an ever-decreasing circle - initially, a few walk leaving those remaining to pick up the slack. Eventually they get miffed and walk leaving even fewer working much harder, who, of course get miffed or burnt out fairly quickly and leave or get signed off.
To break the chain, someone very senior needs to publicly recognise the problem, ease off the pedal and actually fight off the bean counters enough to improve things.
The thing that worries me is not the number of my generation leaving...we're all approaching our 38/16pts. The concerning thing is the number of 1st and 2nd tourists setting up to leaving in the very near future.
Of course, until they actually 'press the button' we don't have a problem though, right?