Anyone in a hiring market that favors the job seekers has to look out for this. Employers typically see the employee as a tool to solve their problems, but I think a lot of managers don't pay attention to employees who use the company as a tool to further their careers. Resume driven development, chasing metrics, and self promotion are way faster routes to progress than actually doing a good job. Getting the job I want is a long process. I'm going to take the most direct route to that, and it's a manager's job to make sure our interests are aligned.