"2. The ISL Must Credit the Longevity and Career Expectations of United's First Officers United's First Officers, who make up a large portion of the middle of the United seniority list, likewise have a substantial longevity advantage over their CAL counterparts at a comparable part of their list. On a stovepipe basis, UAL first officers had, on average, between 14 and 15 years of longevity and their average age was approximately 48. By contrast, their CAL counterparts had approximately 50 percent of UAL pilots' longevity, averaging 7 to 8 years of service. These pilots also were, on average, about five and a half years younger. We expect that the CAL Committee's proposal will downplay or ignore entirely the longevity component of Merger Policy and propose an ISL that would lead to United pilots facing a glass ceiling – i.e., being perpetually behind younger Continental pilots whose presence will block the UAL pilots' ability to upgrade to their pre-merger potential before they retire and the Continental pilots inherit the merged list. This impact would be especially pernicious if it kept United pilots on the bottom half of the list from benefitting to an appropriate degree from the widebody captaincies that their pilot group brings to the merger in a disproportionate amount – a fact we discuss in the following section. In addition to these pilots' substantial longevity advantage, the career expectations equity also supports an integration that protects the interests of United's First Officers. These pilots had an expectation, absent the merger, that they would have the opportunity to fly widebody, international routes for a significant portion of their career. As the evidence will establish, and as discussed infra, had United not merged and had its fleet remained static at the May 2010 level, retirements and other attrition alone would have given these pilots the opportunity to progress through the narrowbody captain and, ultimately, widebody captain jobs and to spend substantial time in the left seats of widebodies, which are the most highly desirable and highly lucrative positions in either fleet. The United Committee's proposal honors their longevity and their career expectations. We expect that the CAL proposal will not.