Well, should anyone take the time to read Cranky's article and interview, you'll see the list of things AA has determined were in seriously bad shape, the things they plan to spend money on along with the pretty large efforts by LAX.
QUOTE:
"Oh, And the Operation Matters
The baseline for being able to compete requires an airline to run a good operation. The situation in Philly was far more dire when Suzanne arrived there, but American has had its struggles at LAX. She didn’t mince words when I asked what was on her list of priorities. “First of all, improving the operation. That was number one because you can’t run a bad airline and continue to have your customers be loyal supporters.”