Of course AA will be giving back their slots then, I don't think. A bit hypocritical really. Geese and golden eggs spring to mind. Of course improvements are needed badly, but if it was that bad, AA would pull out, and all the other airlines would not be falling all over themselves to get slots.
"Heathrow Airport has been branded the 'worst in Europe' by a senior executive of a US airline. Don Langford, head of customer services Europe for American Airlines, delivered an outspoken attack on the west London airport, saying it was a 'bit of a dump' that suffered from a lack of investment"