Even if there was a plan, you couldn't keep the captains from leaving to a job that will always be better than what they left. The regionals only work when mainline is NOT hiring. I would say the best solution at this point would be to offer a better contract to 9E to curb attrition, that will probably fail. The next logical step will have to be to operate the RJ's at the mainline. Then increase the pay enough where mainline FO's would go to RJ captain. The natural progression of this career is all screwed up. It used to be FO to captain when you got hired at a company, now it's all over the map. I'm amazed we haven't seen more accidents.
With the cost of initial training so high now, I can't imagine anyone could be a pilot without someone else paying for it. I went down to the local FBO this week, a new 172 is renting for just shy of $200 an hr w/instructor.