Part of that requires American to increase the number of large regional jets it can have regional partners operate, a proposal that runs afoul of limits set in its contract with its pilots' union, the Allied Pilots Association. American is seeking to reject the APA contract, and a primary reason is to negate the contractual limits on out-sourced flying.
http://aviationblog.dallasnews.com/archives/2012/04/american-airlines-executive-de.html