Merge two huge airlines like Atlanta-based Delta and Minnesota’s Northwest into one mega-airline, and a few things have to go on the old to-do list.You have to repaint hundreds of airplanes — a lot of heavy lifting, but no problem. You have to merge pilot seniority lists — a thorny personnel problem, but it can be worked out. And you have to reconfigure two of the most complex computer systems anywhere...
https://www.ajc.com/business/theresa-wise-delta-merger-math-whiz/AsyEgeD67WNMXfcBR0aH7H/