I define too much pay as represented in the old legacy contracts. They BK'd their own companies.
Companies do negotiate with their own unions but are sometimes handcuffed by agressive union actions and have no choice. Take United back in the early 2000's for example. I completed my senior paper at Embry Riddle analyzing the United slowdown and came up with this conclusion. Guess what, I got a A on it.
People forget that UAL's attempt to buy USAir was part of the equation in that 2000 contract. UAL mgt would not listen to the employees who told them it would wreck the airline. Look now at where USAir ended up, and obviously, the UAL pilots were right.
BTW, PBS would be a bad thing for SWA pilots.