This is not a solution in a system where your position can be cut after you've sold your house but before you start your first day. What you describe is that a

This is not a solution in a system where your position can be cut after you've sold your house but before you start your first day. What you describe is that a main way to get a promotion used to be to move. I doubt that is really the case for most people anymore. Additionally, if you move to the wrong place you will be moving again when the CEO runs the company into the ground doing buybacks instead of growing the company.