I've watched from the sidelines of been in the hunt for every hiring boom since the late 60s, it has always been thus. I've seen guys with great resumes, never get a call, others that were unimpressive get hired and vice versa. It is not about resume quals, the legacies, in particular, have a profile they want to interview and won't be budged by a resume, to AUTOTHRUST's point. Six of us in my squadron were turned down by American back in the day, everyone hired at EAL, go figure.
GF