Originally Posted by 3Cforme

I don't think a mix of business class seats across the fleet is a fatal flaw. AA, DL, and UA all have very large intercon fleets. What is space-efficient and offering a competitive set of amenities may not work across the full range 757-A359. Then there's the cycle of upgrades: a new seat can't be rolled out to ~120 aircraft instantly. DL has managed to offer lie-flats/aisle access on all long-haul widebodies. AA can't make that claim - it will be stuck installing last-gen seats even as Polaris and suites are rolling out.