They aren't going anywhere just yet, but there will be contraction. 2016 has just been the very tip of the iceberg when it comes to the retirements at mainline. By 2018 things will be in absolute full swing and only increasing every year after that for a long time to come. 2016 has already been a year full of surprises and we aren't even to the busy summer travel season yet. 2017 will likely be even crazier in terms of industry upheaval. 2018 is when I fully expect the feces to hit the oscillator. Lots of movement off the top of seniority lists, but also lots of shrinking at the regionals combined with consolidation. In just 2 years it's hard to say what the regionals are going to look like. This industry is like a Ferris wheel. Those at the top inevitably come down, and those at the bottom eventually come up. It's all cyclical.