LUS focused much of their attention on on-time performance and ops under the premise that what most pax cared about was getting there on-time and not having their bags lost.
Since the merger on-time performance has slid, Envoy has devolved into a joke of a regional carrier and, Mr. SOBE ER DOC has personally had bags lost three times on non-stop flights in the last 12 months.
Meanwhile, DL has delivered the best on-time performance of the legacies, has refreshed their product, developed a superior int'l biz class product and cleaned AA's clock on nearly every metric.
I say this because, even if AA fixes its performance issues, it's being left in the dust in other areas and just arriving on-time may not be enough for folks not living in an AA fortress hub anymore.
I agree with some of the assertions on here that the current AA management team do not know what it takes to run a world-class airline.