This is superior advice to quitting immediately. You're much more likely to get a good offer if you already have a job and don't need a new one (talking in the

This is superior advice to quitting immediately. You're much more likely to get a good offer if you already have a job and don't need a new one (talking in the financial sense here) than if you quit first and then have to negotiate a package from a position of unemployment. I've seen people quit their job and be forced to come back when they couldn't find work elsewhere. Why take that risk when there's no need?