From my own perspective, I like the concept of thinking about our tenure as finite. It creates a sense of urgency and it helps focus on priorities. I’ve observed too many corporate managers that lost track of the fact that they are not guaranteed a job or even that their company will be there next week. Once you start acting like you own the bricks and mortar and the chair and desk that you sit at and even the people that work for you, your judgment clouds, your motivation weakens and your intentions become suspect.