I guess that the lack of response to my post suggests that there are not many (if any)companies that prefer long term employees.
I have come across two turboprop companies recently who said that they were desperate for captains and part of the reason for that is a poor recruitment policy with people leaving the company after a very short spell (five months in one case). I know there is always a chance of anyone moving on.
In such a money orientated enviroment it is hard to believe that airlines can accept the disruption and cost of constantly recruiting and training pilots who intend to leave at the first opportunity. and crisis management is considered to be a normal way of working.
Nomercy