Unfortunately, I think PA's arrogance got the best of them and as a result, they are no longer here today. As the unofficial flag carrier of the US, they flew virtually everywhere. However, they had NO domestic feed until they acquired the old National after a pissing constest with Frank Lorenzo and Texas International. Pan Am and National virtual polar opposites as far as company culture goes, and that was one of the many, many factors that hurt PA. Also, they continued to fly unprofitable routes until the end. PA had big, old planes and suspect service and even after National had a weak domestic network. Thus they were devoured by leaner, hungrier, stronger competition between United, American, and Delta.
Fortunately for some, PA's reputation shines much brighter than its reality.
My wife can't wrestle, but you should see her box.