Fatigue?
Fatigue is not a problem, it is the pilots responsibility to report when fatigued. This is the safety net, you have the ultimate responsibility not us. When a pilot reports fatigued then it shows his life is interfering with his work. This is a simply pilot problem and not an airline problem. There are plenty of pilots who want these jobs, so reporting fatigued just means that you should consider a career change to something better suited to you.