It seems that someone could make a killing by building a service where you: 1) can invite a small group of recruiters who have gained your trust 2) keep an up

It seems that someone could make a killing by building a service where you: 1) can invite a small group of recruiters who have gained your trust 2) keep an up-to-date record of what it would take for you to switch (whether it's Facebook offering a CTO position or any job that pays about the same) 3) make it easy to work with your selected recruiters to find a new job (accept/reject leads, plan job interviews, etc. etc.)