Red is wrong when he mentions 10 training events, it will be more like 20 per retirement. That is because for every Capt that moves up when a senior Capt retires there will also be an F/O that moves up to replace the senior F/O that became a junior Capt. The only thing that may reduce the number of training events, unless Delta doesn't replace the retired pilot, is if different aircraft pay the same, like UPS, then that may reduce the number of moves. But if you have guys looking for pay increases, or improved QOL, then you could have 20 training events for every retirement.How do you know there will be 10 training events for every retirement? Do you really think they'll have 8,000 training events per year 10 years from now when 800 guys hit 65?