"...dangling a flow..."
Zonda (and Piltdown),
It's hard to count on how effectively flows will work...a bit of a roll of the dice, I suppose. They can be a long haul and lots can go wrong with that "promise" [if that's what it is] along the way but a person is getting some experience that helps on the ladder climb.
Whatever happened to that Endeavor-to-Delta program ? I have a vague recollection of it causing some bad feelings with the Endeavor pilots already on the list pre-Endeavor-to-Delta when it was introduced.