The only reason WHY PA Delegation is not agressively seeking other air carriers to come in and take the gates, is LABOR. BELEIVE IT OR NOT, LIKE IT OR LUMP IT, IT'S ALL ABOUT LABOR AT THIS POINT. $500 bILLION COST REDUCTION WILL HAVE TO TRANSLATE INTO A "MAINLINE" HUB STATUS. I know this for a fact. If U is not interested, don't waste anyones time, just back up.
USAirways is has the ear of the Delegation ONLY BECAUSE OF THE 8,000 JOBS IN PITTSBURGH. Without that cavieaut, ther would not be any incentive to "piss" around waiting to accomodate U and deal with the shananigins of this mangment.
If a "main line " deal can't be had, there will be no cost saving further to U, and the negotiations will fall to the way side.