AAL guys should watch this:
>>
- Videos - Section 01 - Scope <<
It's an overview of the current UAL/CAL JCBA Section 1 scope language that was ratified in 2012. On the date of signing there were significant protections added with additional decreases of outsourced flying over the duration of the CBA.
Love it or hate it, DAL and UAL are "industry standard" with UAL being a bit more restrictive.
Another thing to consider is getting squeezed at both ends - regional and international flying. Carefully read the international scope for language that restricts the company from forming international joint ventures or code sharing that include revenue share. The concept of "metal in the market" means they don't get paid (as much) on a route unless they operate flights on that route.
Hold the line guys - good luck!