Well "US" people, as a Retired AA FSC employee, I'm not about to tell you your(US) business.
But I feel strongly that a lot of the reasons that US/PHL will never change, has been mentioned by a lot of previous posters.(things like WX, ATC, TSA and the fact that PHL is an Extremely outdated airport, for a city It's size)
As one who was born/raised and worked in the "corridor" I'm about to mention, I feel I can speak from experience.
There are(IMHO) 4 BIG cities in the USA that cannot be managed, only semi-controlled.
They are only in a 300 mile straight line from each other, and are very unique, compared to the rest of the country !
(I'll mention MIA later, which is NOT one of the 4)
The cities, BOS-NYC-EWR-PHL, are hard core union, VERY ethnic/racial, and like the "prisioners that run the asylum", cannot be broken !!(only semi-controlled)
I feel very confident 2 things will happen.
1. Mr. Tony will make only so much headway.
2. US will NEVER "pull down" PHL !!!
The CULTURE in these cities have been this way for CENTURY'S !!
This is not to say that a city like DTW,ORD are "easy going" cities. BUT they DO NOT compare to the "4" !!
(As promised) MIA.
MIA is another "Inmates running the asylum" city, but with a different twist. LANGUAGE barrier,and ethnic factions hating each other, and "jockying" for position.
The Jamaicans are "wary" of the Puerto Ricans, who are "wary" of the Dominicans who are "wary" of the Cubans, who are "wary" of the Colombians, who are "wary" of the "Red Necks", who are "wary" of the (white) Yankees !!
NH/BB's
ps,
I worked 11 years for AA in one of "the 4" cities, so I speak from experience !!
GOOD LUCK TONY.
Your gonna' need it !!