The thaught of an industry wide senoirty list has gone around for decades. Problem is that people are greedy and don't want to loose what they built at their airline. Meaning that say a competetor of equal size goes out of bussiness, would you want to take a pay cut for those pilots? The answer for 45 years has been no. The American guys are looking at Delta and saying make a stand. Who bennifits if Delta goes under? Will American Captains go back to the pay of right seat for em? Will a low seniortity F/O go to the street at American under this senerio? The answer is greed rules.