IMO opinion there is zero leverage as far as staffing goes for any legacy airline. There are thousands and thousands of ATP rated pilots currently flying jets at 121 operations. Delta and other legacies are top tier when it comes to applicants' wants. I'm not even sure places like spirit would have a hard time finding applicants in the coming years. The only reason there is a shortage at the rj level now is because of compensation and the RAA is doing their best to get the mins lowered again to avoid paying more money. I'd say delta is well above the compensation threshold to attract candidates.

I want every Alpa airline pilot to make more money including delta but staffing I don't believe is giving the pilots any leverage.