It seems to me the VB undercurrent is being generated by examining alternative operational designs.

Brainstorming a bit, if a narrowly defined VB concept isnt economically viable seems they might start modeling perhaps a region/fleet PBS pool for monthly schedules.

Example...a NE region pbs bid run. This would allow network/CR to construct rotations free of the domicile end point requirements and provide pilots to bid schedules suited to their geographic compatibility to constructed rotations.

The concept of VB is the product of people here looking for a better (more efficient/ profitable) way to do what we do.

We have a lot of smart and dedicated people around this company. And not just in the cockpit. Given the task to find a better way these folks just might come up with one.

VB calculations should inform this group our future will likely be one of change.