Here is only 5 reason !
1. No trust or respect between you and higher management.
2. No say
3. No inspiration from management.
4. Leave allocated by company.
5. Aircrew divided because of different payscales and conditions.
5.25. Pay
5.50. 15-20 years to command
5.75. Seniorty system partly destroyed. (direct entry captains, early command on cargo, basings unavailable due new hires and extended senior pilots.)
5.99. Things are just not right for this "professional" "flag" carrier.