I think it could work. Your plan makes sense, and is essentially a flow. But that seems to be a sticking point in the craw of DL (at least for now).

The key to it is scraping off the top for DL, not the middle nor the bottom. We have folks here now who don't want to move on, and they would have to retire out for this plan to be effective. And then there's the group of pilots who already got the double no. What to do with them?