I think that you misunderstand your position in these "negotiations", any vague power you might have had is disappearing with every resignation. I realise that you have to believe that you have some power over your destiny, but you really don't have much at all.
Don't get me wrong, I think a decent Scheduling Agreement is a wonderful idea, but I also know how little success consecutive CC's have had in getting one. I'm not sure why you think your CC, that has virtually no bargaining position, is going to change things (but good luck to them).
The reason that flybe has never had the roster stability that the other LoCos have had, is partly the mix of aircraft, and partly the destinations they fly to. Oh, and also the crappy rostering software and inexperienced Crewing department. It will have to change, but it will take big bits of money to do it (always an obstacle to change).