.........the problem is sunshine that many airline managements in an attempt to destabilise the unions end up destabilising the whole company.
The act of destroying a union becomes paramount and the airline suffers.
Additionally, pilots tend to stay with the one airline for decades. Corporate ladder-climbing management types however like to use the 'drive-by' shooting type managerial process. Come in with a bang, shoot the place up, lift their own personal profile by (for example screwing a union) and then move on to another airline or industry having left the previous airline profitable for that year but perhaps permanently and fatally damaged.
It is idiots like Frank Lorenzo end up destroying once great airlines.
Eastern Airlines, Ansett, Australian etc etc etc.
Pilots may apply for a job but that does not prevent them from improving their conditions whilst employed. God knows the plethora of egotistical managers seem hell-bent on what some accuse pilots of doing - destroying the industry for their own personal gain. Bring back Juan Trippe and Sir Reginald Ansett I say!