One thing missing here is your relationship with your manager. You could be a star employee, and have a crap relationship with your manager, noone is going to f

One thing missing here is your relationship with your manager. You could be a star employee, and have a crap relationship with your manager, noone is going to fight for you to stay. Conversely, you could be a mediocre employee and have a great relationship with your manager, and be paid oodles and oodles to stay because you do have someone singing your praises. It's all about perception, not reality.