They’d be a lot better off coming up with pay models that work for a broader spectrum of the hiring pool.
They really haven’t hit real “shortages” yet. Nobody is having any real trouble filling their new hire classes that I’ve seen.
It’s a rough business. Profit margins are razor thin at some regionals. Paying better isn’t on the table for them.
Adding in some sort of part-timer system raises total costs, it doesn’t lower them. More training time for less profit making work produced.
They’d have to be really desperate to do that. None are currently that desperate. Not by a long shot.
What there’s been some limited rumors of is one or two hiring “street Captains” on one-time Pass/Fail basis. Candidate has a bejillion hours on jets elsewhere and agrees to a one time horrendous checkride without knowing the company’s flows and call outs, business, culture, or any of it that their upgrading FO peers have in their heads already.
Big risk for the applicant, but helps if the airline is growing rapidly and can’t upgrade FOs yet. Makes the FO pool very angry sometimes. Rarely done. Almost never. Stirs up the online forums pretty good even as just a rumor.