The DOH issue is a tough one to get past.
Date of Hire is concrete and can not be manipulated. There is no "Fairness Test" with strict DOH, therefore it can not by its very nature "Fooled With". It's arbitrary and simple.
Now when you get people involved with much to gain and much to lose, fairness is self defined. So if there are 5,000 pilots, there are 5,000 definitions of what's "Fair"
Given the above I think Doug is going to have to "Buy" peace with the pilots otherwise he puts his company at risk of at minimum continued shoddy performance and modest profits, or at worst C11 orC7.
It's not the worst position in the world to be in, having the CEO come to you hat in hand asking "What's it gonna take for you folks to play nice in the Sandbox?"
To me the trick is to keep this little penis measuring contest going until the money looks right, then grab the darn money, shake hands, smile & wave to the crowd.