Independent carriers flying under their own brand name focusing on short haul flying in one region of the country. They did have some codeshare flying with mainline carriers, but it wasn't always the only source of revenue like it is today. None of this generic branding and route maps that look like a mainline carrier. It would do a lot of good for the regional industry to return to this model (from a pilot's point of view) for the sake of better onboard product, and employee benefits/pay.