Paraphrased from TOF regarding Casey's letter:

Regarding the domestic scope/codeshare of which you speak...Correct me if I'm wrong but most regional airlines can barely staff themselves adequately today. How are they going to staff themselves with more flying via increased codeshare/relaxed scope at their mainline partners? This is a serious question. Just go the the Regional forum on airline pilot central and read for a few minutes. Even the best Regionals are critically short. They have no FO reserves and because of it Captains frequently fly trips together. This after only 3,000 retirements since 2012. There are 23,500 age 65 retirements scheduled in the next 10 years. Delta is cancelling lift with their regional feed and moving lots of flying in house as we speak.

What am I missing? I'm not suggesting we give away scope/codeshare protections. I'm just wondering if this is even an issue. How does the airline industry expect to find more pilots than they've ever had to and get them to fly for less pay at theoretically larger regional airlines?