A flow program in and of itself is not likely to bring in pilots. It is a piece of a pie and the rest of the pieces need to be there as well. Pay just by itself may also not be enough for some people. The regionals that can put together an appealing "package" will continue to bring in pilots. There's lots of people out there that have the hours and ratings working other jobs because they can't afford to be a pilot. Once that becomes a possibility, their love of aviation will bring them in if they can live on the pay. That stream can fill the gap until more people can get through training.